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Blababa [14]
3 years ago
12

What is a catalyst?

Chemistry
2 answers:
Elden [556K]3 years ago
8 0

A catalyst in science is a process which speeds up a reaction and some cars are emitted with catalyst converter which reduce to harmful bacteria amd chemicals to be let in within our atmosphere

luda_lava [24]3 years ago
7 0

a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

 -  a person or thing that precipitates an event.

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How many particles are in 1.40 x 10^7 mol of aluminum (Al)?
SpyIntel [72]

Answer:

<h3>Hlo there !! </h3>

<u>One mole of any substance contains 6.022*1023 structural units (atoms, molecules, ions, etc.). This number is known as the Avogadro constant.</u>

<u>One mole of any substance contains 6.022*1023 structural units (atoms, molecules, ions, etc.). This number is known as the Avogadro constant.So 1.04*107 mol of Al contains 1.40*107 * 6.022*1023 = 8.43*1030 structural units (in case of Al – atoms).</u>

<h3><u>8.43*1030 particles Al.</u></h3>

Explanation:

<h3>Hope this helps !!</h3>
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