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OLEGan [10]
3 years ago
10

Explain with the help of examples difference between elements and compounds​

Chemistry
1 answer:
djyliett [7]3 years ago
5 0

Answer:

Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions. ... Some of the examples of elements are Iron, Copper, Gold, etc. A few examples of compounds are NaOH, NaCl, etc.

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True or false? You can follow the progress of a reaction that produces a gas using a sensitive mass
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Answer:

true

Explanation:

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What happens to the hydrogen ion (H+) concentration as an aqueous
padilas [110]

Answer:

Explanation:

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B: is the correct answer.

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A real gas behaves more like an ideal gas when the gas molecules are
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3 years ago
Write an equation that expresses the law of thermodynamics in terms of heat and work
Anettt [7]

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As an aside: In applying the first law, do we need to measure the internal energy of a system? Explain.

The absolute internal energy of a system cannot be measured, at least in any practical sense. The internal energy encompasses the kinetic energy of all moving particles in the system, including subatomic particles, as well as the electrostatic potential energies between all these particles. We can measure the change in internal energy (DE) as the result of a chemical or physical change, but we cannot determine the absolute internal energy of either the initial or the final state. The first law allows us to calculate the change in internal energy during a transformation by calculating the heat and work exchanged between the system and its surroundings.

3 0
3 years ago
Which of the following are correct for zero-order reactions?
GREYUIT [131]

Answer:

The answer is "Choice A and Choice B"

Explanation:

The Zero-Order reactions are usually found if a substrate, like a surface or even a catalyst, is penetrated also by reactants. Its success rate doesn't depend mostly on the amounts of the various reaction in this reaction.

Let the Rate = k

As \frac{dx}{dt} \ rate\ \  K_0 doesn't depend on reaction rate, a higher reaction rate does not intensify the reaction.

By the rate k_0 =\frac{dx}{dt}, the created based and the reaction rate is about the same.

5 0
3 years ago
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