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Elza [17]
2 years ago
10

What is the role of a catalyst in a chemical reaction?

Chemistry
1 answer:
Zinaida [17]2 years ago
4 0

A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy without itself being consumed by the reaction.

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6 0
3 years ago
Find the number of grams in 16.95 mol hydrogen peroxide (H2O2). Round your
Feliz [49]

Answer: There are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

Explanation:

Number of moles is defined as the mass of substance divided by its molar mass.

The molar mass of H_{2}O_{2} is 34.01 g/mol. Hence, mass of hydrogen peroxide present in 16.95 moles is calculated as follows.

Moles = \frac{mass}{molarmass}\\16.95 mol = \frac{mass}{34.01 g/mol}\\mass = 576.46 g

Thus, we can conclude that there are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

3 0
3 years ago
I need to know the measurements of this to the appropriate amount of significant figures
Alexandra [31]

Answer:

[See Below]

Explanation:

48 or 49 ml.

7 0
2 years ago
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ehidna [41]

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5 0
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A object in a fluid will sink if the <br><br><br><br><br>help plz​
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D.

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Because if an object is more dense than water it will sink.

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