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exis [7]
3 years ago
9

The elements carbon nitrogen and oxygen are all part of the same blank on the periodic table.

Chemistry
2 answers:
Arturiano [62]3 years ago
4 0
In the same period number 2
k0ka [10]3 years ago
3 0
They are all part if the same period, period 2
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Mama L [17]

Answer:

b. decreases

C. neither a physical change nor a chemical change

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3 years ago
A 100.0 g sample of sugar contains carbon, hydrogen, and oxygen. The sample contains 40.0 g of carbon and 53.3 g of oxygen. What
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Answer:

I think this is it.

Explanation:

As all the mass of other molecules are given and we have to find the mass of hydrogen so total subtracted by carbon and oxygen.

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Which of these statements is true?
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1) All atoms are _____.
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All atoms are of <u>neutral charge, with an equal amount of protons and electrons.</u>

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3 years ago
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Mekhanik [1.2K]

The mass of magnesium, which has a density of 1.74 g/cm is 504.6 g.

<h3>What is mass?</h3>

Mass is the quantity of matter. Mass can be calculated by multiplying density by volume.

Magnesium is a chemical element with the atomic number 12. It is needed in the body in trace amounts. It can cause malnutrition in the body.

Mass = Density x volume

We know the density and the volume of magnesium.

Density = 1.74

Volume = 290

Density x volume

Putting the value in the equation

1.74 x 290 = 504.6 g

Thus, the mass of magnesium is 504.6 g.

To learn more about mass, refer to the below link:

brainly.com/question/22795877

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