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Aliun [14]
3 years ago
15

Why is a standard system of measurement important?

Chemistry
2 answers:
GrogVix [38]3 years ago
8 0
I believe the correct response is A.
Angelina_Jolie [31]3 years ago
7 0
So the question ask to determine which of the following is the reason why is a standard system of measurement is important and the best answer would be letter A. Scientist want to share measurement data that they can understand. I hope you are satisfied with my answer and feel free to ask for more .

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How much of a sample remains after three half-lives have occurred? 1/16 of the original sample 1/9 of the original sample 1/8 of
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The balanced chemical equation for the reaction is

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and

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From the question,

We are to write a balanced chemical equation for the reaction between Calcium metal and oxygen gas

The balanced chemical equation for the reaction is

2Ca(s) + O₂(g) → 2CaO(s)

This is the balanced chemical equation for the reaction

To determine whether the reaction meets the requirements to be considered a redox reaction,

We will define the term <em>redox reaction</em>

<em></em>

A <em>redox reaction</em>, also called oxidation-reduction reaction, is any chemical reaction in which the oxidation number of a participating chemical species changes.

From the balanced equation above we can observe that the oxidation number of the participating species(Calcium and oxygen) changed.

The oxidation number of Calcium changed from 0 to +2

and

The oxidation number of Oxygen changed from 0 to -2

∴ The process meets the requirements to be considered a redox reaction.

Hence, the balanced chemical equation for the reaction is

2Ca(s) + O₂(g) → 2CaO(s)

and

The process meets the requirements to be considered a redox reaction.

Learn more here: brainly.com/question/17716543

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2 years ago
What are things that amorphous and crystalline have in common?
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