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IrinaVladis [17]
3 years ago
8

Which element is located in period 4?

Chemistry
1 answer:
Lena [83]3 years ago
6 0

Answer:

i beleive iron

Explanation:

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When charging an object by conduction, what happens to the charges in the<br> object?
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A barium atom attains a stable electron configuration when it bonds with?
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What is the total number of hydrogen atoms contained in one molecule of (NH4)2C204?
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=8 atoms

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3 years ago
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Acetone is the main chemical in nail polish and has a density of 0.7857 g/mL. What is the volume of 6.54g of acetone ?
trapecia [35]

8.3mL

Explanation:

Given parameters:

Mass of acetone = 6.54g

Density of acetone = 0.7857 g/mL

Unknown:

Volume of acetone = ?

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Density is defined as the mass per unit volume of a substance. It is expressed mathematically as shown below:

  Density = \frac{Mass}{Volume}

Since the unknown is volume, we make it the subject of the formula

Volume =  \frac{mass}{density}

Input the values;

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learn more:

Volume brainly.com/question/2690299

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