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3 years ago

Which statement best describes the relationship between photosynthesis and cellular respiration?

Chemistry

1 answer:

Elena L [17]3 years ago

5 0

Answer:

Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere.

Explanation:

The first option clearly expresses the relationship between photosynthesis and cellular respiration.

Cellular respiration releases carbon back into the atmosphere whereas photosynthesis removes the carbon from the atmosphere.

Photosynthesis is the process whereby green plants manufacture their food using carbon dioxide and water.

In cellular respiration, the product of the photosynthesis is used by organisms to produce energy.

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Pure carbon commonly occurs in two forms: strong diamonds and soft,brittle graphite. The graphite is much more brittle because i

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4 years ago

Read 2 more answers

The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorous and oxygen act together as on

Lapatulllka [165]

Answer:

The 2 in the formula means that, there are 2 phosphate anions that forms the salt.

Explanation:

Magnesium phosphate is a ionic salt.

The formula indicates that 3 moles of Mg and 2 moles of anion phosphate are contained in 1 mol of compound.

3Mg²⁺ + 2PO₄⁻³ → Mg₃(PO₄)₂

The phosphate anion comes from phosphoric acid and it is generated when the acid loses the 3 protons.

H₃PO₄ → 3H⁺ + PO₄⁻³

Phosphate has a negative charge of -3, so when it bond to magnesium, which has a charge of +2, there must be 3 magnesium and 2 phosphate to make a global charge +6 -6 in the ions

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3 years ago

What's a good model for isostasy is

lisov135 [29]

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4 years ago

How many molecules of N2O4 are in 76.3g N2O4? The molar mass of N2O4 is 92.02 g/mol.

Murrr4er [49]

Answer:

4.99*10²³ molecules of N₂O₄ are in 76.3 g of N₂O₄

Explanation:

Avogadro's Number is the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number represents a quantity without an associated physical dimension. Avogadro's number applies to any substance.

You know that the molar mass of N₂O₄ is 92.02 g/mol, and you have 76.3 g. Then you can apply the following rule of three: 92.02 grams are present in 1 mole of the compound, 76.3 grams in how many moles are they?

$amount of moles= \frac{76.3 grams*1 mole}{92.02 grams}$

amount of moles= 0.83 moles

Then, you can apply another rule of three: if by definition of Avogadro's number 1 mole of the compound has 6.023*10²³ molecules, 0.83 moles of the compound, how many molecules will it have?

$amount of molecules= \frac{0.83 moles*6.023*10^{23}molecules }{1 mole}$

amount of molecules= 4.99*10²³

<u><em>4.99*10²³ molecules of N₂O₄ are in 76.3 g of N₂O₄</em></u>

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3 years ago

Nuclear energy is currently used in which three kinds of vehicles? O cars, submarines, spacecraft submarines, ships, spacecraft

Snowcat [4.5K]

Answer:

spacecraft, airplanes, cars

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3 years ago