2 LiI + Cl₂ → 2 LiCl + I₂
2 LiBr + F₂ → 2 LiF + Br₂
ExplanationEach of the five reactions involve one halogen molecule (F₂, Cl₂, Br₂, and I₂) substituting the ion of another halogen (F⁻, Cl⁻, Br⁻, and I⁻).
Halogen atoms are found in group 17 of the periodic table. They are all non-metal elements. Each of the halogen atom will gain one electron to form an ion of charge -1. However, the tendency to do so decreases down the group.
F is the first halogen in group 17. It has only two shells of electrons. Cl is right under F. Its electrons occupy three main energy shells. Br follows with four main energy shells. I is under Br and has five main energy shells.Atoms of all four elements have the same effective nuclear charge of +7. However, F has the smallest radius. As a result, it has the strongest hold on electrons around it. Its ion F⁻ is more stable than ions of Cl, Br, or I. Similarly, its molecule F₂ is more reactive than Cl₂, Br₂, and I₂.
As a result, the stability of halogen molecules increases down the group:
Stability: F₂ < Cl₂ < Br₂ < I₂.The stability of halogen ions decreases down the group:
Stability: F⁻ > Cl⁻ > Br⁻ > I⁻.Cl₂ repaces F⁻ (from LiF) in first reaction. F₂ and Cl⁻ are produced. F₂ is less stable than Cl₂. Cl⁻ is less stable than F⁻.
Cl₂ replaces I⁻ (from LiI) in the second reaction. I₂ and Cl⁻ are produced. I₂ is more stable than Cl₂. Cl⁻ is more stable than I⁻.
Br₂ replaces Cl⁻ (from LiCl) in the third reaction. Cl₂ and Br⁻ are produced. Cl₂ is less stable than Br₂. Br⁻ is less stable than Cl⁻.
F₂ replaces Br⁻ (from LiBr) in the fourth reaction. Br₂ and F⁻ are produced. Br₂ is more stable than F₂. F⁻ is more stable than Br⁻.
I₂ replaces Br⁻ (from LiBr) in the fifth reaction. Br₂ and I⁻ are produced. Br₂ is less stable than I₂. I⁻ is less stable than Br⁻.
Based on the reactivities of the elements involved, 2LiI + Cl₂ → 2LiCl + I₂ and 2LiBr + F₂ → 2LiF + Br₂ reactions will form products that are more stable than the reactants.
What do you understand reactivity?
Reactivity of any element is inversely proportional to the stability of the element. Because the stable element will not react quickly.
In the given question all the reactants are halogens except lithium and halogens are belongs from the 17th group of the periodic table.
In the molecular form stability of halogens are increasing from top to bottom, because size of halogens increases and repulsion between the atoms decreases.F₂ < Cl₂ < Br₂ < I₂
In the halide form stability of halogen group are decreasing from top to bottom because size increases then the effective nuclear charge of nucleus on the outermost shell electrons decreases and stability also decreases.F⁻ > Cl⁻ > Br⁻ > I⁻
Hence, the stable reactions are 2LiI + Cl₂ → 2LiCl + I₂ and 2LiBr + F₂ → 2LiF + Br₂.
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is a sodium cation smaller or larger than a sodium atom
A sodium cation is smaller than a sodium atom.
Hopefully this is right...
what factor distinguishes a metallic bond from an ionic bond or a covalent bond
The answer to this question is:
The mobility of electrons.
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Answer:
The ionic bond occurs between two different atoms (metal and nonmetal), while the covalent bond occurs between two equal atoms (nonmetals),
Another difference between these is that the covalent bond is an electron compartment, while in the ionic bond there is an electron transfer.
Metal bonding occurs when metals are combined with each other. Metal atoms need to give up electrons to reach the configuration of a noble gas. In this case, the metals lose the valence electrons and an electron cloud forms between the positive nuclei.
Which type of eye wash station must be checked and flushed most often
stand up eye wash station
Answer:
The answer is: When a foreign substance, usually irritating, penetrates the eyes, and for people with sensitive eyes.
Explanation:
An eyewash liquid, or eyewash liquid system is a liquid, usually a saline solution, used as an emergency or safety mechanism in laboratories and industrial plants as an aid to eye rinsing, s when a foreign substance, usually irritating, penetrates in them.
These eye drops can be beneficial for people with sensitive eyes and can provide relief from the side effects of painful sensation.
The answer is: When a foreign substance, usually irritating, penetrates the eyes, and for people with sensitive eyes.
A repetition of properties occurs when elements are arranged in order of increasing atomic number.
This is known as modern periodic law
According to this repetition of properties occurs when elements are arranged in order of increasing atomic number.
This law was proposed by Mendleev.
Previously the periodic law was that the properties are repeated with atomic mass.
The periodic law, which emerged in the 20th century, suggests that properties of elements repeat periodically when arranged by their atomic numbers. This is depicted in the periodic table, where elements are ordered by their atomic numbers in rows and columns, grouping elements with similar properties. The periodic table thus facilitates the prediction of element behavior.
Explanation:The repetition of properties in elements, when arranged in order of increasing atomic number, is best described by the periodic law. This law states that the properties of elements are periodic functions of their atomic numbers. The periodic table, where this law is visibly demonstrated, organizes elements in increasing order of their atomic numbers in horizontal rows (periods) and vertical columns (groups).
Atoms with similar properties within this table are grouped in the same column. Each atomic box typically contains the element's symbol, atomic number, average atomic mass, and possibly its name. The periodic mapping of elements through atomic numbers rather than atomic masses emerged in the twentieth century and its modern version is widely accepted across the world today.
Since the periodic table's organization is based on shared properties among elements, it provides an efficient system for predicting the behavior of an element. Therefore, it becomes simpler to understand why elements in the same group have similar characteristics, for instance, why the metallic character increases as we move down a group.
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What’s the name of this element and what is the reactivity?
Victoria has a crate of vegetables that weighs 100 newtons. She exerts a force of 100 newtons to lift the crate with a pulley. What’s the mechanical advantage in this situation?
A. less than 1
B. equal to 1
C. equal to 0
D. more than 1
Simply put, MA = Force Out / Force in. That's the way it is usually stated. The force out is normally what you need to move. The force in is what you need to supply to get the force out. Most machines will give you an MA of more than 1. Some (like your arm) will give you less than 1 and others (like this one) will give you exactly one.
This one is frictionless, otherwise it would slip into less than one if it had friction.
Answer B
Answer:
Mechanical advantage in this situation is equal to 1.
Explanation:
The mechanical advantage of a simple machine gives a relationship between the input force applied to the output force. Mathematically, it is given by :
[tex]MA=\dfrac{F_o}{F_i}[/tex]
Where
[tex]F_o\ and\ F_i[/tex] are output force and input force
In this case, the weight of the crate of vegetables is 100 N
Force exerted by her to lift the crate with a pulley is 100 N
The mechanical advantage in this situation is given by :
[tex]MA=\dfrac{100}{100}=1[/tex]
So, the mechanical advantage in this situation is equal to 1. Hence, the correct option is (b) "equal to 1".
how did james chadwick discover the neuron?
James Chadwick was assigned the task of tracking down evidence of Rutherford's tightly bound "proton-electron pair" or neutron. In 1930 it was discovered that Beryllium, when bombarded by alpha particles, emitted a very energetic stream of radiation. This stream was originally thought to be gamma radiation.
what did theodor schwann do??? for the cell theory (what is the theory)
He concluded that all tissues are made up of cells.
Theodor Schwann, along with Matthias Jakob Schleiden, is credited with the formulation of the Cell Theory in 1839, which postulates that all living things are comprised of cells, the cell is the essence of biological structure and function, and that new cells are produced from the division of existing cells.
Theodor Schwann, a renowned zoologist, together with botanist Matthias Jakob Schleiden, contributed to one of the fundamental concepts in biology known as the Cell Theory. After extensive observation and research, they proposed that cells form the elementary building blocks of all living organisms and that all life is cellular in nature. This discovery laid the groundwork for modern biology and emphasized the universal importance of the cell as the basic structural, functional, and biological unit of all living organisms. Schwann's pivotal work highlighted that the cell is not merely a random assortment of matter, but a complex and dynamic unit vital for life. Further contributions by Rudolf Virchow, who added the idea that new cells can arise only from other pre-existing cells, completed the robust framework of the theory that continues to underpin biological research and understanding to this day.
A bald eagle's average speed is about 50 km/h. About how long would it take an eagle to fly 1 kilometer? A. 1 second B. 1 minute C. 1 hour D. 1 day
If a bald eagle flies at 50 km/h, then it would take about 1.2 minutes to fly 1 kilometer. Therefore, the closest answer is B. 1 minute.
Explanation:If an eagle flies at an average speed of 50 km/h, it means that in 1 hour, the eagle would cover 50 kilometers. To find out how long it would take the eagle to fly 1 kilometer, we have to divide the total time for its average (1 hour, or 60 minutes) by the total distance it can cover (50 kilometers).
So, 60 minutes divided by 50 kilometers equals 1.2 minutes. Thus, it would take the eagle approximately 1.2 minutes to fly 1 kilometer. Therefore, the answer is B. 1 minute (rounded off).
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When 2.5000 g of an oxide of mercury, (HgxOy) is decomposed into the elements by heating, 2.405 g of mercury are produced. Calculate the empirical formula.
In the given question,
HgxOy (2.50 g) = xHg (2.405 g) + yO
Here, mass of oxygen = 2.50 - 2.405
= 0.095 g
The moles of O₂ = 0.095 / 16 = 0.00594 moles
Moles of Hg = 2.405 / 200.60 = 0.01198 moles
Thus, the ratio of Hg : O is,
0.00594 : 0.01198 or 1 : 2
As the ratio is 1 : 2, thus, the empirical formula is Hg₂O
Which sentence best describes part of the process for generating electricity in a nuclear power plant?
A. Atoms join together to produce water molecules.
B. An atom releases electrons, producing an electric current.
C. Protons and neutrons join together to create atoms.
D. Heat is released when atomic nuclei split.
Answer is: D. Heat is released when atomic nuclei split.
Nuclear fission is a nuclear reaction or a radioactive decay where nucleus of atom split into smaller ligher nuclei.
Nuclear fission is exothermic reaction which release large amounts of energy (electromagnetic radiation or as kinetic energy, which heat reactors where fission reaction take place).
Nuclear energy is the energy found in the nucleus of an atom.
Answer is: D. Heat is released when atomic nuclei split.
Nuclear fission is a nuclear reaction or a radioactive decay where nucleus of atom split into smaller ligher nuclei.
Nuclear fission is exothermic reaction which release large amounts of energy (electromagnetic radiation or as kinetic energy, which heat reactors where fission reaction take place).
Nuclear energy is the energy found in the nucleus of an atom.
Why is soap used to remove grease
It works because soap is made up of molecules with two very different ends.
Hope this Helps
Soap breaks up the oil (grease) into smaller drops, which can mix with the water. This is why we use soap to clean grease because it break it apart causing it to wash off object clean. Hope this help!!!:)
Which of these actions would decrease heat transfer between two objects?
increasing the temperature of the warmer object
increasing the area of their contact
reducing the thermal energy of the cooler object
reducing the time of their contact
Answer: Reducing the time of contact between the two objects will decrease the heat transfer between them.
Explanation:
increasing the temperature of the warmer object will raise its own temperature and hence the heat transfer will increase.increasing the area of contact will also increase the heat transfer because the rate of transfer will increase and the loss to surrounding will decrease.reducing the thermal energy of the cooler object will decrease its own temperature and this will increase the heat transfer to reach the equilibrium temperature.reducing the time of contact between the two objects will decrease the amount of heat transferred between the two objects according to the time that will be in contact.the answer is d you guys and girls i just took it on the test
Does the length of the carbon chain affect the boiling point of alkanes? If so, how? provide evidence to support your answer? (b) If the chain contains a functional group, would you make the same conclusion? Again provide evidence.
Yes. B.p. tend to increase with the number of carbon atoms in the backbone.
ExplanationStraight-chain alkanes have the general molecular formula C[tex]_n[/tex]H[tex]_{2n+2}[/tex]. Adding carbon atoms to the chain increases the number of electrons in each molecules.
Alkane molecules are not polar without any functional groups. The only possible force between them is London Dispersion Force (a.k.a. induced dipole). Electrons shift within molecules to create instantaneous dipole in this type of force.
Molecules with a large number of electrons experience the most significant shift. London Dispersion Force is strongest in those molecules. They shall have the highest boiling points.
Examples: (SynQuest)
C₂H₆ (ethane)- b.p. -88 °CC₄H₁₀ (butane)- b.p. -1 °C ~ 1 °CC₆H₁₄ (hexane)- b.p. 68 °C ~ 70 °C(b)The conclusion in (a) likely holds molecules in the same homologous series.
ExplanationMolecules in the same homologous series have the same types and numbers of functional groups. However, they differ only in the number of repeating units (-CH₂ in this case) that they contains. The number of such units in each molecule is directly related to the length of its carbon backbone.
Functional groups introduce extra types of forces between the molecules. For instance:
Halogens, e.g., Cl, forms polar bonds with carbon. In most cases they make the molecule polar enough to form dipole-dipole interactions.Hydroxyl groups -OH can lead to hydrogen bonds between the molecules.Functional groups tend to have similar effects on the b.p. in the same homologous series. The extra interaction due to the functional groups stays generally the same. Trends in the strength of dispersion forces likely follow the reasoning in (a). There shall be a similar conclusion. Molecules with the longest backbone in the same homologous series would have the highest b.p.
Example: (FooDB)
CH₃COOH (ethanoic acid)- b.p. 118 °CC₂H₅COOH (butanoic acid)- b.p. 163.5 °CC₃H₇COOH (hexanoic acid)- b.p. 205 °CNote, that it's only the number of repeating units in the carbon backbone that differs. Functional groups shall be on the similar positions on members of the series. For instance, 1,1-dichloroethane Cl₂-CH-CH₃ and 1,1-dichloropropane Cl₂-CH-CH₂-CH₃ are on the same series; whereas 1,3-dichloropropane Cl-CH₂-CH₂-CH₂-Cl is not.
Which two particles can form an ionic bond with each other? A. a negative oxygen ion and a negative chlorine ion B. a positive sodium ion and a positive magnesium ion C. a positive calcium ion and a negative oxygen ion D. a neutral fluorine atom and a negative sulfur ion
A positive calcium ion and a negative oxygen ion can form an ionic bond with each other, as they have opposite charges which attract. Such a pairing would result in the formation of the ionic compound calcium oxide (CaO). Options involving two negatively charged ions or two positively charged ions, as well as a neutral atom paired with a negative ion, do not produce ionic bonds because there is no attractively charged pairing.
An ionic bond is formed when one atom donates an electron to another atom, resulting in the formation of positively charged ions (cations) and negatively charged ions (anions). This type of chemical bond typically occurs between metals, which tend to lose electrons, and non-metals, which tend to gain electrons, leading to a compound with a net zero charge. For particle pairs to form an ionic bond, one must be a positive ion and the other a negative ion.
Looking at the options provided:
A. A negative oxygen ion (anion) and a negative chlorine ion (anion) would both have a negative charge and therefore could not form an ionic bond with each other due to like charges repelling.
B. A positive sodium ion (cation) and a positive magnesium ion (cation) both have positive charges and, like option A, would repel rather than form an ionic bond.
C. A positive calcium ion (Ca2+) and a negative oxygen ion (O2-) have opposite charges and would attract each other to form an ionic bond, resulting in the ionic compound calcium oxide (CaO).
D. A neutral fluorine atom and a negative sulfur ion (anion) also cannot form an ionic bond because the neutral fluorine atom does not have a charge to attract the negatively charged sulfur ion.
Therefore, the correct answer is C: a positive calcium ion and a negative oxygen ion can form an ionic bond with each other, illustrating the transfer of electrons and the electrostatic attraction that characterizes ionic bonding.
give 2 examples of energy transformation that occur when making toast in a toaster oven
When making toast in toast oven, the following energy transformation occur
a) electric energy is converted to heat energy which heat up the filaments of toaster, which helps in roasting of toast.
b)the heat energy is transferred to bread or toast
When making toast in a toaster oven, energy transformations occur from electrical energy to thermal energy, and from thermal energy to radiant energy.
Explanation:When making toast in a toaster oven, two examples of energy transformation that occur are:
Electrical energy to thermal energy: The electrical energy from the power source is transformed into thermal energy when the toaster oven heats up the heating elements inside.Thermal energy to radiant energy: The thermal energy produced by the heating elements is transformed into radiant energy in the form of infrared radiation, which then heats up the bread slices and transforms them into toast.Learn more about Energy transformations in a toaster oven here:https://brainly.com/question/11751233
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Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li (s) + N2 (g) → 2Li3N (s) In a particular experiment, 4.00-g samples of each reagent are reacted. The theoretical yield of lithium nitride is ________ g.
Answer: 6.71 g
Explanation: [tex]6Li(s)+N_2(g)\rightarrow 2Li_3N[/tex]
[tex]{\text{no of moles}}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]
[tex]{\text {moles of lithium}}=\frac{4g}{6.914g/mol}=0.578moles[/tex]
[tex]\text{moles of nitrogen}=\frac{4g}{28g/mol}=0.143moles[/tex]
Limiting reagent is the reagent which limits the formation of product. Excess reagent is one which is in excess and thus remains unreacted.
Thus lithium is the limiting reagent and nitrogen is the excess reagent.
As can be seen from the balanced chemical equation, 6 moles of lithium reacts with 1 mole of nitrogen to give 2 moles of lithium nitride.
Thus 0.578 moles of lithium react with 0.096 moles of nitrogen.
6 moles of lithium give = 2 moles of lithium nitride
Thus 0.578 moles of lithium give=[tex]\frac{2}{6}\times {0.578}=0.19moles[/tex] of lithium nitride.
Mass of lithium nitride [tex]Li_3N={\text {no of moles}}\times {\text {Molecular mass}}[/tex]
Mass of lithium nitride[tex]Li_3N[/tex]=[tex]{0.192moles}\times {34.83g/mol}=6.71g[/tex]
Answer: 4.02
Explanation:
-- 4.00 g Li x 1 mol Li x 2 mol LiN x 20.948 g LiN = 4.02 g LiN
-------------- ---------------- ---------------------
6.941 g Li 6 mol Li 1 mol LiN
-- 4.00 g N2 x 1 mol N2 x 2 mol LiN x 20.948 g LiN = 5.98 g LiN
-------------- ---------------- ---------------------
28.014 g N2 1 mol N2 1 mol LiN
what is the name for B2(SO4)3
Answer:
The chemical formula B2(SO4)3 represents boron sulfate.
Vito was having a picnic by a lake with his classmates. He threw a rock into the lake and watched i sink His friend, Romeo, threw his apple in the lake and watched it float. What is the best explanation for why the rock sank and the apple floated?
Which of the following is the best definition of a scientific theory?Help me plz
how to distinguish a solution of sodium sulphite from a solution of sodium sulphate in the lab
We have to distinguish a solution of sodium sulphite from a solution of sodium sulphate in the laboratory.
Solution of sodium sulphite is acidified with dilute HCl and to that when few drops of barium chloride (BaCl₂) solution is added, white precipitate is formed. The white precipitate is soluble in HCl.
To this solution 2 drops of iodine (I₂) solution is added and brown colour of iodine is discharged as I₂ gets reduced to HI.
The reactions involved in case of sodium sulphite is are:
Na₂SO₃ + BaCl₂ = BaSO₃ ↓ + 2NaCl
(white precipitate)
BaSO₃ + 2HCl = BaCl₂ + H₂SO₃
H₂SO₃ + I₂ + H₂O = H₂SO₄ + 2HI
On the other hand, solution of sodium sulphate is acidified with dilute HCl and to that when few drops of barium chloride (BaCl₂) solution is added, white precipitate is formed. The white precipitate of BaSO₄ is formed which is insoluble in HCl.
Na₂SO₄+ BaCl₂ = BaSO₄ ↓ + 2NaCl
(white precipitate)
in the reaction C5H8+____ O2= 8H2O+5CO2
What is the maximum number of electrons found in any energy level of the known elements? (Refer to the periodic table.) 112 32 86 92
The answer is 32 electrons.
Answer:
32 electrons are the maximum electrons found in the N shell.
Explanation:
According to the periodic table, Maximum number of electrons in any energy level of known element is 32 which is found in N shell.
Each shell can contain fixed number of electrons. The first shell is the K shell that holds two electrons, the second shell that is L shell which holds eight electrons(2+6), The third shell is M shell which holds 18 electrons(2+6+10), and the fourth shell is N shell which holds the maximum number of electrons that is thirty two(2+6+10+14) electrons. The general formula is [tex]2n^{2}[/tex] electrons.
The outermost shell is called the valence shell and the electrons present in these shell are called valence electrons. Each shell consists of one or more subshells, and each subshell consists of one or more atomic orbitals.
what is our ultimate source of energy on earth
what is our ultimate source of energy on earth
The sun is our ultimate source of energy, silly!
The ultimate source of energy on Earth is the sun, which powers life and processes through nuclear fusion. Its energy supports photosynthesis and is stored in fossil fuels, while modern solar technology enables us to harness this energy directly.
Explanation:The ultimate source of energy on Earth is the sun. This massive celestial body fuels virtually all processes and life forms on our planet. Through a process called nuclear fusion, the sun converts hydrogen into helium, releasing vast amounts of energy that travel to Earth as sunlight. This energy is critical for photosynthesis, the process by which plants produce food, thereby supporting the food chain and various ecosystems. Besides, the sun's energy is stored in fossil fuels like coal and petroleum, which are remnants of ancient plants and animals.
Although these fossil fuel resources are finite and will eventually deplete, the sun represents an essentially unlimited supply of energy. Modern solar technology, including photovoltaic cells, harnesses this sunlight directly to produce electricity, offering a renewable and sustainable alternative to fossil fuels. Solar energy's challenge lies in efficiently capturing and converting it to meet global energy demands.
Demand decreases and competition increases are factors that cause a shift in the quantity supplied (true or false)
Answer is: true.
Demand decreases and competition increases decrease the quantity supplied.
Quantity supplied is the quantity of a commodity that producers are willing to sell at a particular price at a particular point of time.
Quantity demanded is the quantity of a commodity that people are willing to buy at a particular price at a particular point of time.
Quantity demanded can change at the same price depending upon factors like recession, changes in the taste of the consumer.
Competition is rivalry between two or more economic groups.
what is the weighted-average mass of all known isotopes for an element
Atomic mass of an element is the weighted average.
why do cells have a plasma membrane
A) SEPARATE PROTEINS FROM NUCLEUS
B) DISTINGUISH PLANTS FROM ANIMALS
C) DEFINE THE SIZE OF THE CELL
D) SEPARATE THE INSIDE OF THE CELL FROM ITS ENVIRONMENT
A separate proteins from nucleus
Some characteristics of each of the four states of matter are given in the table below.
States of Matter
State Are Particles Charged? Space Between Particles
1 No Very Low
2 Yes High
3 No High
4 No Low
Which state of matter does State 4 represent?
A. Gas
B. Liquid
C. Plasma
D. Solid
Matter can be classified into four states:
1) Solid: This state is composed of uncharged particles that are held together very closely in a regular arrangement by strong intermolecular forces of attraction.
2) Liquid: Like solids, this state is also composed of uncharged particles. However, compared to the solids these lie farther apart and are held by relatively weaker forces
3) Gas: In this state, the interacting particles are uncharged and have a lot of space between them to move freely.
4) Plasma: This is the fourth state of matter composed of highly charged particles which are far apart from each other and possess high kinetic energies.
Based on the given characteristics:
In State 4 the particles are uncharged with a relatively low separation between them. This corresponds to the liquid state.
Ans: B
It's a Liquid! Sorry if it's too late!
Which of the following describes the product of a chemical reaction
I believe the correct answer would be the substances that are formed. Why? Because during a chemical change, the substances (scientifically called reactants) which are changed into other substances are called products.
Hope I could help! :)
A chemical reaction is a series of events that involves the reactants and the products. The product of the reaction is the substances that are formed. Thus, option A is correct.
What are products and reactants?Products are the substances that are formed when the chemical reactants undergo changes in the bond breaking and formation resulting in a new substance in the form of compounds, molecules, or elements. They are formed at the end of the reaction and are on the right side of the equation.
The reactants are the chemical substances that underwent reactional alterations that cause the change in the bonds and the chemical properties causing the formation of the products. They are present at the initial stage of the reaction and are on the left side of the equation.
Therefore, the products are formed at the end of the reaction.
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Your question is incomplete, but most probably your full question was, Which of the following describes the products of a chemical reaction?
A.The substances that are formed
B.The substances that are changed
C.The starting materials
D.The chemical ingredients
Will carbon and hydrogen atoms most likely form an ionic bond or a covalent bond?
In most cases, carbon shares electrons with other atoms (usual valence of 4). This is because carbon typically bonds with elements which have a similar electronegativity. Examples of covalent bonds formed by carbon include carbon-carbon, carbon-hydrogen, and carbon-oxygen bonds
answer is covalent bond because carbon has 4 valence electron and shared them hence it is a covalent bond.