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Julli [10]
3 years ago
5

How do catalysts increase the rate of a chemical reaction?

Chemistry
2 answers:
Thepotemich [5.8K]3 years ago
6 0

A] They lower the activation energy.


uranmaximum [27]3 years ago
4 0
The correct answer is A
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How is the atomic mass of an atom calculated?
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Adding the number of protons by the number of neutrons
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Why is Anton Von Leeuwenhoek important in the cell theory?​
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He was the first scientist to observe and describe bacteria and protozoa by looking at a drop of water from a pound under a microscope. He also was the one to build the first compound microscope.

Hope this helps :)

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What is the genetic makeup of both parents ?
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Where is most of the high-level waste from nuclear reactors stored?
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3 years ago
Read 2 more answers
How many atoms are in 8.28 moles of aluminum?
Lilit [14]

Answer:

49.86 × 10²³  atoms of Al

Explanation:

Given data:

Number of moles of Al = 8.28 mol

Number of atoms = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

For 8.28 moles of Al:

1 mole = 6.022 × 10²³  atoms of Al

8.28 mol×6.022 × 10²³  atoms / 1mol

49.86 × 10²³  atoms of Al

4 0
3 years ago
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