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Elena L [17]
3 years ago
8

I need help with my chemistry but you can only choose one correct answer​

Chemistry
2 answers:
azamat3 years ago
4 0

Answer:

Explanation:

photosynthesis

the given chemical reaction is photosynthesis.

During photosynthesis carbon dioxide absorbed by plants reacts with water in presence of sunlight to give glucose and oxygen.

lubasha [3.4K]3 years ago
3 0
It’s double replacement
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What is metal ? Where does it coke from ?
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Answer:

  • Most pure metals, like aluminium, silver and copper, come from the Earth's crust.
  • They are found in ores – solid materials called minerals, usually occurring in rock, from which the pure metal has to be extracted.
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In a problem, you are given two pressures and one temperature at constant volume and amount of gas. You are asked to find a seco
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I don't know who it was named for but the law is

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4 years ago
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a

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4 0
3 years ago
Consider the reaction.
Alekssandra [29.7K]

Answer:The correct answer is option C.

Explanation:

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)

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So, 100.0 L volume of NH_3will be occupied by :

\frac{1}{22.4 L}\times 100.0 L=4.4642 moles

According to reaction 2 moles NH_3 are obtained from 1 mole of N_2.

Then,4.4642 moles of NH_3 will be obtained from :

\frac{1}{2}\times 4.4642 that is 2.2321 moles of N_2

Mass of N_2 gas:

Moles of N_2 gas  Molar mass of N_2 gas:

2.2321 mol\times 28 g/mol=62.4988\approx 62.50 g

Hence, the correct answer is option C.

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3 years ago
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