Which of the following explains the importance of the activation energy acting as a barrier for reactants?

Answers

Answer 1

Answer: The energy needed for a chemical reaction is called the activation energy. This energy is to be present in order for the reaction to happen. This can be achieved by supplying or releasing heat from a system of reactants. This can achieved faster by using a catalyst.

Related Questions

A newly discovered element, Z, has two naturally occurring isotopes. 90.3 percent of the sample is an isotope with a mass of 267.8 u, and 9.7 percent of the sample is an isotope with a mass of 270.9 u. What is the weighted average atomic mass for this element?
Expressed in proper scientific notation, the number is 0.00213 a 0.213 x 10² b. 2.13 x 10⁻² c. 2.13 x 10⁻³ d. 213 x10⁰
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What are some non examples of systems.

True or false? The radioactive wastes produced by nuclear fission remain dnagerous for dozens of years

Answers

True, this is why Chernobyl is still not to be lived in

What causes the volume to change in gases? (choose all that apply) a) temperature
b) density
c) shape of container
d) pressure

Answers

Answer:

Temperature, pressure, shape of container

Answer:

temperature, density, pressure.

Explanation:

describe how the current modern atomic theory and model differs from the model jj Thompson proposed ?

Answers

J.J Thompson’s model shows a sphere with electrons that are moving around freely. However, Thompson’s model does not show protons or neutrons. The model that we have today gives a clearer structure showing protons, neutrons, and electrons inside an atom.

Which of the following materials is not considered to be a semiconductor? germanium tin silicon aluminum

Answers

Tin and Aluminum are not considered as semiconductors but rather conductors themselves because they are metals. Semiconductors are in general elements from column IV or or compounds of columns III and V of the periodic table.

Germanium and silicon are semiconductors because they are metalloids.

Aluminium is not considered to be a semiconductor.

What interacted directly with the photographic plates to cause images in Becquerel’s experiment?A...uranium salt

B...radiation

C...unstable nuclei

D...radioisotopes

Answers

Answer: A. uranium salt

Becquerel made a conclusion that it was the uranium that causes the images found in the photographic plates. Though his theory was disproved during the first time,he continued to develop it. Then, it is through this experiment that Becquerel discovered radioactivity.

Answer:

a on edge 2021

Explanation:

Bromine, a liquid at room temperature, has a boiling point of 58° C and a melting point of -7.2° C bromine can be classified as a Compound, impure substance, mixture, or pure substance

Answers

The answer to the chemistry question above would be pure substance. Bromine is classified as a pure substance because only the element is present and there are no other substances added or mixed with it. It is also not a compound because it does not come with another element.

Answer:

pure substance

Explanation:

i just did on edgen

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What property of an atom determines its general reactivity?

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