The percent composition of carbon in a given hydrocarbon is 83.91%.
The percent composition of hydrogen in a given hydrocarbon is 16.09%.
Given:
The hydrocarbon ,[tex]C_7H_{16}[/tex]
To find:
The percentage composition (by mass) of carbon and hydrogen in the given hydrocarbon.
Solution:
The atomic mass of carbon atom = 12.0107 g/molThe atomic mass of hydrogen atom = 1.00784 g/molThe molecular mass of given hydrocarbon ,[tex]C_7H_{16}[/tex]:
[tex]=7\times 12.0107 g/mol+16\times 1.00784 g/mol=100.20034 g/mol[/tex]
Number of carbon atoms in a single molecule of given hydrocarbon = 7The mass percentage of carbon in given hydrocarbon:
[tex]C\%=\frac{7\times 12.0107 g/mol}{100.20034 g/mol}\times 100=83.9068\%\approx 83.91\%[/tex]
The percent composition of carbon in a given hydrocarbon is 83.91%.
Number of hydrogen atoms in a single molecule of given hydrocarbon = 16The mass percentage of hydrogen in given hydrocarbon:
[tex]H\%=\frac{16\times 1.00784 g/mol}{100.20034 g/mol}\times 100=16.0932\%\approx 16.09\%[/tex]
The percent composition of hydrogen in a given hydrocarbon is 16.09%.
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what are the SI base units for :mass length time and volume
The BEST example of diffraction is the image of
Question 8 options:
a ring around the Sun caused by particles in the air.
a pencil that appears broken in a glass of water.
a fingerprint that appears to be enlarged under a magnifying glass.
your image in a mirror
Answer: The answer is the ring around the sun created by particles.
Explanation:
Answer:
the first one
Explanation:
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why can an automobile use gasoline for power????
1.potential energy is stored in the gasoline
2.kinetic energy is stored in the gasoline
3.static energy is stored in the gasoline
4.nuclear energy is stored in the gasoline
In a chemical reaction, Substance A reacts with Substance B and forms a new substance AB. The chemical equation for this reaction is A + B = AB where A and B are the reactants and AB is the product. If you add more and more of only Substance A, there will be
) Less and less of product AB
b) More and more of product AB with no limit to the amount of AB produced
c) No change in the amount of AB produced
d) More and more of product AB but limited by the amount of B
50 POINTS
Make a connection between bacteria and extreme environment
A neutral Adam possesses an atomic number of 15 and atomic mass of 31 three electrons are gained what is the result of a conversion
a negatively charged ion
Animals, plants, fungi, and protists are made up of eukaryotic cells, which are cells that
Eukaryotic cells are found in plants, animals, fungi, and protists. They have a membrane-bound nucleus and organelles. These cells are larger in size and have additional features compared to prokaryotic cells.
Eukaryotic cells are found in plants, animals, fungi, and protists.
These cells have a membrane-bound nucleus and organelles.
They are larger in size compared to prokaryotic cells and can be unicellular or multicellular.
Eukaryotic cells are capable of both asexual and sexual reproduction.
They are characterized by features such as a semipermeable and flexible cell membrane, well defined nucleus, and the presence of membrane-bound organelles.
Animals, plants, fungi, and protists are made up of eukaryotic cells, which are cells that contain a nucleus and organelles, enclosed by a plasma membrane.
Eukaryotic cells are cells that contain a nucleus and organelles, and are enclosed by a plasma membrane.
Organisms that have eukaryotic cells include protozoa, fungi, plants, and animals.
Eukaryotic cells are more complex compared to prokaryotic cells, which lack a membrane-bound nucleus.
In eukaryotic cells, the genetic material is housed within a nucleus, and they contain various organelles such as mitochondria, which are essential for various cellular functions.
These cells are characteristic of members of the four kingdoms of Eukarya: animals, plants, fungi, and protists.
How much energy, in kilocalories, is in the clam chowder?
The energy in clam chowder is measured in kilocalories (kcal or nutritional Calories), which is part of its nutritional information. The actual amount varies depending on specific recipe or brand.
Explanation:The amount of energy, specifically the caloric content, in clam chowder or any other food, is typically detailed in the food's nutritional information. In terms of dietary consumption, energy is usually given in terms of Calories (note the capital 'C'), also known as nutritional calories or kilocalories (kcal). One nutritional Calorie is equal to 1 kcal, or 1000 basic chemistry calories (cal) - this is approximately the amount of energy required to heat 1 kg of water by 1 °C.
However, without specific nutritional information about the particular clam chowder in question, we can't give a specific kcal value. The calories in clam chowder can significantly vary depending on the specific recipe or brand, including variables such as the presence and amount of different ingredients like cream, clams, potatoes, etc.
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Which item is made from a basic ingredient? Soap Tea Wine Vinegar
Answer is: soap.
Soap is a salt of a fatty acid and alkaline (basic) solution. An alkaline solution induces saponification of triglyceride fats into salts of fatty acids.
Toilet soap has sodium and potassim cations. Metallic soap have magnesium and calcium cations.
Sodium soaps, made from sodium hydroxide are firm and potassium soaps, made from potassium hydroxide, are softer or often liquid.
Answer:
soap
Explanation:
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Frank and Lisa are analyzing the chart, which shows the speed at which light travels through different media.
Frank says that light travels through diamond with the greatest frequency. Lisa says that light travels through air with the greatest frequency.
Which best describes the accuracy of these statements?
a.Frank is correct because light travels through diamond at the slowest speed, and speed and frequency have an inverse relationship.
b.Lisa is correct because light travels through air at the fastest speed, and speed and frequency have a direct relationship.
c.Neither person is correct because light does not change frequency when it travels through different media.
d. Both people are correct because light has both an inverse and a direct relationship with frequency, depending on the media.
Answer: The correct answer is "Neither person is correct because light does not change frequency when it travels through different media".
Explanation:
The speed of the wave depends on the medium through which it is travelling. The speed of the light is more in the rarer medium than the denser medium.
Frank says that light travels through diamond with the greatest frequency. Lisa says that light travels through air with the greatest frequency. Both are wrong as the frequency remains constant when the light is travelling from one medium to another. The speed of light is lowest in diamond.
Therefore, the correct option is (c).
How does the law of conservation of mass apply to this reaction C2H4 + O2 > 2H2O + 2CO2
why conduction is slower in a gas than in a liquid or solid.
The s subshell can hold up to two electrons in an atom. True or False
Which statement differentiates between prokaryotic cells and eukaryotic cells?
Eukaryotic cells have DNA; prokaryotic cells do not.
Prokaryotic cells have DNA; eukaryotic cells do not.
Eukaryotic cells have nuclei; prokaryotic cells do not.
Prokaryotic cells have nuclei; eukaryotic cells do not.
Answer:
Eukaryotic cells have nuclei; prokaryotic cells do not.
Explanation:
Eukaryotic cells have a separate organelle named nucleus (plural: nuclei) which is a double membranous structure meant for the storage of genetic material i.e. chromosomes (DNA). Prokaryotes on the other hand have an irregularly shaped structure named nucleoid instead of nucleus. All the genetic material of the prokaryotes is within the nucleoid. Unlike nucleus, nucleoid does not have any nuclear membrane & it is spread in the cytosol freely.
Answer: Eukaryotic cells have nuclei; prokaryotic cells do not.
Explanation: Eukaryotic cells have chromosomes that are enclosed in nucleus and are separated from the cytoplasm by the Nuclear membrane.
Whereas, on the other hand, Prokaryotic cells only have small range of organelles, usually only a plasma memrane and ribosomes.
What is the relationship between mass and the end stages of stars
Identical objects are placed in Beaker A and Beaker B. The objects float as shown in the diagram. What can you conclude about the liquid in each of the beakers?
a
Question 6 options:
The liquid in Beaker B has a greater density than the liquid in Beaker A.
The liquid in Beaker A has a greater density than the liquid in Beaker B.
The liquid in Beaker A has a greater density than the objects. The liquid in Beaker B is less dense than the objects.
Both liquids are less dense than the objects.
I think the answers are B or D please help me!
the elements iron and oxygen can react to form the compound iron oxide. what type of reaction is this? please explain.
Answer:
Oxidation reaction
Explanation:
Rust is formed when iron reacts with oxygen in moist air. The following chemical equation represents the reaction: 4Fe + 3O2 → 2Fe2O3. Water is necessary for the oxidation reaction to occur and to facilitate transport of the electrons
Is mass conserved when 50 g of sugar undergoes a physical change?
what is 2000 converted to scientific notation
why is the periodic table called the periodic table
The periodic table is called the periodic table because it repeats. All the elements on the periodic table are arranged by atomic number so the elements repeat. It’s almost like in school when you have switch classes they repeat as well. It’s very fascinating to see all these elements organized it the way that that they are.
A centrifuge was used to separate a sample into its components. What conclusion about the sample can be formed based on the technique used? It was a pure substance. It was a compound. It was a heterogeneous mixture. It was a homogeneous mixture
Its Homogenous Centrifuges are used to speed up the process of separating Homogeneous mixtures.
Answer is: It was a homogeneous mixture.
For example, a centrifuge is used to separate components from blood.
This technique is also used for heterogeneous mixtures.
Centrifugation is a technique using centrifugal force to separate particles from a mixture according to their size, shape and density.
The principle is that the denser particles are forced to the bottom and the lighter particles stay at the top.
Salt is a compound made from sodium (Na) and chlorine (Cl). Salt : A has properties very similar to sodium. B has properties very similar to chlorine. C has very different properties from sodium and chlorine.
Answer:
it is c bc i know i was in 7th grade once lol
Explanation:
What are all 4 levels of the energy pyramid? HELP ASAP
It’s cold outside and you decide to cook some pasta. As you boil the noodles, the kitchen window begins to fog up. Which processes are at work here?
Final answer:
The processes at work here are evaporation and condensation. When the boiling water molecules gain enough energy to escape the liquid and enter the air as vapor, evaporation occurs. The water vapor then condenses back into liquid form on the cooler window glass, resulting in fog.
Explanation:
The processes at work in this situation are evaporation and condensation.
Evaporation occurs when the boiling water molecules gain enough energy to escape the liquid and enter the air as vapor. This is why the kitchen window fogs up; the water vapor from the boiling noodles comes into contact with the cooler window glass and condenses back into liquid form, forming water droplets that appear as fog.
Condensation is the process by which a gas or vapor changes back into a liquid. In this case, the water vapor condenses on the cold window, which has a lower temperature than the boiling water and causes the vapor to lose energy and revert to its liquid state.
Which of the following is necessary for plants to exhibit phototropism?
A. Gravity
B. Touch
C. Auxin
D. Dormancy
Answer: C. Auxin
Explanation:
Phototropism can be define as the growth of the plant in response to the stimulus of light. The plant parts grow in direction of the sunlight this phenomena is called as positive phototropism. For example, stem. The plant parts when grow against the direction of sunlight this phenomena is called as negative phototropism. For example, root.
The auxin is a plant hormone which is responsible for phototropism. It moves to the darker side of the plant and helps the growth of the plant on that side as compared to the lighter side of the plant. This results in curving of the plant stem tip towards the light hence, results in positive phototropism.
what kind of rays has the highest amount of energy in the EM spectrum?
Answer:
Gamma rays
Explanation:
Gamma rays have the highest energy,lowest wavelength and highest frequency. On the other hand radio waves have the lowest energy and highest wavelength.
How does the process of waste removal in a unicellular organism compare to the waste removal in a multicellular organism
which part of the amino acid helps identify features that differentiate one amino acid from another
It’s easier to determine the elecron configurations for the p-block elements in periods 1,2,3 than to determine the electrons configurations for the rest of the p-block elements in the periodic table beacause
Answer:It’s easier to determine the elecron configurations for the p-block elements in periods 1,2,3 than to determine the electrons configurations for the rest of the p-block elements in the periodic table beacause from period 4, specifically from the element 31 (Ga), the atoms start to fill the d orbitals, and the energy levels of the 3d orbitals ara quite similar to the energy levels of 4p orbitals. So, for the elements Cr and Cu the right configurations do not match the configurations predicted using Aufbau method and Hund rules. Those are not the only exceptions but the two first. All is due to the proximity of the energy of the d and p orbitals and the fact that the rearrangement of the electrons result in a lower energy
Explanation:
Liquid alcohol will change to vapor when its temperature reaches the