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Anit [1.1K]
3 years ago
9

Fill in the blanks to complete the statements about the gases in Earth’s atmosphere. Earth’s atmosphere is mostly nitrogen, whic

h makes up about 78 percent of the atmosphere, and , which makes up about 21 percent. in the air condenses around tiny particles, causing clouds and rain. The gas exists in small amounts but is very important because plants use it to make food.
Chemistry
2 answers:
vivado [14]3 years ago
8 0

Answer:

1) Oxygen

2) water vapor

3) carbon dioxide

nasty-shy [4]3 years ago
8 0

Answer:

Earth’s atmosphere is mostly nitrogen, which makes up about 78 percent of the atmosphere, and  

✔ oxygen

, which makes up about 21 percent.  

✔ water vapor

in the air condenses around tiny particles, causing clouds and rain. The gas  

✔ carbon dioxide

exists in small amounts but is very important because plants use it to make food.

Explanation:

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Answer:

It is made up of two elements.

Explanation:

To answer the question given above,

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This implies that CaCl₂ contains two different elements.

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2 years ago
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3 years ago
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6 0
3 years ago
Please help me with this chemistry problem
Margarita [4]

Answer:

50 g of K₂CO₃ are needed

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How many grams of K₂CO₃ are needed to make 500 g of a 10% m/m solution?

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