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VikaD [51]
3 years ago
15

Which of the following contribute(s) to most of the mass of an atom?

Chemistry
2 answers:
Goryan [66]3 years ago
7 0
C) protons and neutrons
nataly862011 [7]3 years ago
6 0

Answer:

C) protons and neutrons

Explanation:

im pretty sure it is c

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Explain what air is, where on Earth it occurs, and how it moves to create wind.
pickupchik [31]

Answer:

Wind is caused by differences of pressure in the Earth's atmosphere. Air from a high pressure area will move towards an area of low pressure. High winds are caused when air moves between areas with large differences in air pressure.

Explanation:

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If 50.75 g of a gas occupies 10.0 l at stp, 129.3 g of the gas will occupy __________ l at stp.
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How many atoms of h are in 1 mol of (nh42so4?
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8 0
3 years ago
4. 200 mL of a 5.6M solution to BaCl_2 have 750 mL of water added to it. What is the new concentration?
IceJOKER [234]

Answer:

4. 1.18 mol·L⁻¹

14. See below.

Explanation:

4. Dilution calculation

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Data:

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(b) p = k/V =k(1/V)

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   y  =   m x  + 0

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4 0
2 years ago
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KATRIN_1 [288]
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