Which of the subatomic particles is most responsible for the chemical properties of an element?
A very strong structural molecule in plants that is formed by hydrogen bonding between chains of glucose molecule is
during the process of erosion and deposition sediments are the____?
Question 3 options: how many moles of argon atoms are present in 11.2 l of argon gas at stp?
It is known that at if a gas is identified to be as ideal gas then, at STP, the volume of 1 mole of that gas is equal to 22.4 L. Using this fact and the given volume in this item, we determine the number of moles as that below.
n = (11.2 L of argon)(1 mol argon / 22.4 L of argon)
n = 0.5 moles
Answer: 0.5 moles
The sign of δ g predicts whether the formation of the products in a reaction is favored. if the value is positive, the formation of the products in a reaction is:
Write a chemical equation that describes the dissolving of solid magnesium nitrate, Mg(NO3)2, in water.
Answer:
Your answer is Mg(NO3)2, in water Mg(NO3)2(aq) → Mg2+(aq) + 2NO3-(aq)
Explanation:
The molecular mass of bromophenol blue is 692.0. Find the atomic mass for copper from a periodic table.
.
In an experiment, 1 mol of propane is burned to form carbon dioxide and water.
How many moles of oxygen are needed for the reaction?
How do moss leaves and fish differ? How are they the same?
Was the Titanic ship made out of the element, titanium and does the name titanium have anything to do with the Titanic?
The number of neutrons in an atom is referred to as its atomic number true or false
What do you predict will happen in two weeks time to seedling (B)?
The leaves will turn 180 degrees, and the stem will curl 90 degrees downwards.
The stem will turn 90 degrees downward, and the root will curl 90 degrees upwards.
It will die because it is lying on its side.
The root will turn 90 degrees downward, and the stem will curl 90 degrees upwards.
Answer:
The root will turn 90 degrees downward, and the stem will curl 90 degrees upwards.
Explanation:
Answer:
The root will curl down, and the stem will curl up.
this is for exabit A
Nearly all ionic compounds are solids at room temperature in the solids the total blank charge is balanced by the
How does Bohr’s atomic model build on Rutherford’s model?
According to bohr's model of the atom in which orbitals do electrons have the least energy
Answer: Outermost orbitals
Explanation:
What kind of elements are columns 1,2 and 13-18 on the periodic table?
1-2: Metals non-metal.
13-18: Metalloids, Non-Metals, Metals
Columns 1, 2, and 13-18 on the periodic table are main-group elements, with column 1 containing alkali metals, column 2 containing alkaline Earth metals, and columns 13-18 including groups such as pnictogens, chalcogens, halogens, and noble gases.
Columns 1, 2, and 13-18 on the periodic table represent main-group elements, which are also known as representative elements. The elements in these columns have distinct properties and are usually presented in a way that highlights the similarities within a group.
Elements in column 1, except for hydrogen, are known as the alkali metals. They typically form compounds that consist of one atom of the element and one atom of hydrogen, and they share similar chemical properties.
Column 2 contains the alkaline earth metals. These elements form compounds with two atoms of hydrogen and exhibit comparable properties among themselves.
Columns 13 to 18 include various other families of elements with distinct properties, such as the pnictogens (group 15), chalcogens (group 16), halogens (group 17), and the noble gases (group 18, also known as inert gases).
The elements in these groups also tend to form compounds that reflect their column's valence electron configurations, illustrating the periodic nature of the table in which elements with similar chemical properties appear in vertical columns or groups.
What is the electrical charge of a cation?
A. zero
B. positive
C. negative
Did daltons atomic theory state that atoms of different elements have different masses
The most negative electron affinity is most likely associated with which type of atoms
The atoms with the most negative electron affinity are usually nonmetals, especially halogens. They have a strong desire to gain electrons to fulfill their valence shells, making them more stable. For example, Fluorine has the highest electron affinity.
Explanation:Generally, atoms with the most negative electron affinity are commonly nonmetals, specifically halogens. Electron affinity is a measure of how much an atom wants to accept an electron. A more negative value represents a stronger desire to gain electrons. This eagerness to attract electrons arises primarily because these atoms are only one electron short of filling their valence shells, which makes them more stable. For instance, the halogen Fluorine has the most negative electron affinity, as it greedily accepts electrons to complete its valence shell and achieve a stable noble gas configuration.
Learn more about Electron Affinity here:https://brainly.com/question/34135603
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Why is crushed ice used for snow cones?
Fill in the coefficient that will balance the following reaction:
_____NH4Cl+_______Ag3PO4--->_____AgCl+_____(NH4)3PO4
How many lone pairs of electrons are in the electron-dot structure of h2o?
Corn,sugar,algae,and sewage can be used as fuel for engines. these are all examples of
Answer: Bio-fuels
Explanation:
Bio-fuels are the alternatives of fossil fuels and are directly or indirectly obtained from the plants and other waste materials that are of biological origin. It is much cheaper than the fossil fuels.
The above mentioned crops, algae sugar and other sewage products produces ethanol, undergoing fermentation process, that are essential for making bio-fuels.
Bio-diesel and Bio-ethanol are the two usual types of bio-fuels. Bio-diesels are made up of fats and oils, commonly used to run vehicles whereas bio-ethanol is made from the fermentation of plants and other crops, that are enriched in the production of ethanol.
Which statement best describes resistance? Resistance is
how well a current will flow in a material and is measured in volts.
how well a material conducts an electrical charge and is measured in ohms.
the ability of a material to attract a positive charge to create a current.
the ability of a material to repel neutral charges and is measured in ohms.
Answer: Option (d) is the correct answer.
Explanation:
Resistance is defined as the ability of a substance to resist the slow of electrons or charges through it.
This means that a resistance is the measure to see how difficultly a charge is flowing through a material. Resistance is represented by R and it's S.I unit is ohms.
According to ohms law, electric current is proportional to voltage and inversely proportional to resistance.
Mathematically, V = IR
where, V = voltage
I = current
R = resistance
Thus, we can conclude that the statement ability of a material to repel neutral charges and is measured in ohms, best describes resistance.
What ion carries two negative charges and is isoelectronic with k+?
When thermal energy is added to boiling water, the water temperature?
Which electron configuration represents an excited state for an atom of chlorine?
The electron configuration that represents the electrons in an atom of chlorine in an excited state is 2-8-7. Option 3.
The usual electron configuration for chlorine is 2-8-7. In an excited state, an electron can be temporarily promoted to a higher energy level. For chlorine in an excited state, one electron from the 3rd energy level (7) is elevated to a higher level, leading to the configuration 2-8-7.
This excited electron configuration indicates a temporary alteration in the arrangement of electrons, reflecting the absorption of energy. Once the excitation ceases, the electron returns to its original energy level, and the atom reverts to its ground state configuration (2-8-7).
Which electron configuration represents the electrons in an atom of chlorine in an excited state?
(1) 2-7-7 (3) 2-8-7
(2) 2-7-8 (4) 2-8-8
what requirements must a molecule meet in order to be considered nonpolar?
The atoms of hydrogen, deuterium, and tritium all have the same number of protons, but differ in the number of neutrons they possess. these substances are:
Action and reaction forces always cancel out. question 1 options:
a. True
b. False