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Chemistry

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krek1111 [17]2 years ago

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The number of significant figures in each of the following numbers are as follows:

640 cm³ - number of significant figures: 2
200.0 mL - number of significant figures: 4
0.5200 g - number of significant figures: 4
1.005 kg - number of significant Figures: 4
10,000 L - number of significant figures: 1
20.900 cm - number of significant figures: 5

<h3>What is significant figures?</h3>

Significant figures are those figures that are meaningful with respect to the precision of a measurement.

In other words, a digit that is nonzero, followed by a nonzero digit,or (for trailing zeroes) justified by the precision of the derivation or measurement is a significant figure.

Based on the question, the number of significant figures in each of the following numbers are as follows:

640 cm³ - number of significant figures: 2
200.0 mL - number of significant figures: 4
0.5200 g - number of significant figures: 4
1.005 kg - number of significant figures: 4
10,000 L - number of significant figures: 1
20.900 cm - number of significant figures: 5

Learn more about significant figures at: brainly.com/question/14359464

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option 1st is correct gains 1 electron and becomes a-1.

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In a chemical reaction, substrate molecule A is broken down to form one molecule of product B and one molecule of product C. The

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The answer to your question is d. 0.5 M

Explanation:

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Equation of equilibrium

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Simplification

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3 years ago

The heart, arteries, and veins are all part of what body system?

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3 years ago

Find the number of moles of in 571,0 g of tetraphosphorous octoxide.

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For Helium,

Number of atoms=Number of moles ×6.022×1023

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The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g. Hence 1 mole of He = 4 g of He = 6.022 X 1023atoms of He. 1 g of He = (6.022 X 1023) / 4 atoms of He. 52 g of He = (6.022 X 1023X 52 ) / 4 atoms of He.

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Explanation:

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