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2 years ago

Which of the following measurements has three significant figures?

Chemistry

2 answers:

Free_Kalibri [48]2 years ago

8 0

The correct answer is C: 0.510 m

N I C E - D A Y!

Alexus [3.1K]2 years ago

4 0

Answer:

Explanation:

a) has 2 sig. figures

b) has 1 sig. figures

c) has 3 sig. figures

d) has 2 sig. figures

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Answer:

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3 years ago

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What is the oxidation state of an individual carbon atom in caco3?

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The oxidation state of the carbon is +4.

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Calcium is in group 2 of the periodic table, therefore, its oxidation state is +2.

The oxidation state of the oxygen is -2.

As the compound is neutral, the sum of the oxidation states of all atoms must be 0.

Oxidation State Ca + Oxidation State C + (Oxidation State O)×3 = 0

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x = 4

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