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ivanzaharov [21]
3 years ago
8

Need helpppppp ASAPPPPP Where does the mesosphere get its heat?

Chemistry
1 answer:
kvasek [131]3 years ago
6 0

Answer:

When objects from space (meteoroids, space shuttles) enter the atmosphere, they start heating up in the mesosphere.

Explanation:

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A large sport utility vehicle has a mass of 2600 kg.
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Which of the following is not a symbol of an element?<br><br> a. Na<br> b. CO<br> c. S<br> d. He
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Anastasy [175]

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Explanation:

7 0
2 years ago
H3PO4 + Ca(OH)2 → Ca(H2PO4)2 + H2O
aniked [119]

Given question is incomplete. The complete question is as follows.

Balance the following equation:

H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O

Answer: The balanced chemical equation is as follows.

2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O

Explanation:

When a chemical equation contains same number of atoms on both reactant and product side then this equation is known as balanced equation.

For example, H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O

Number of atoms on reactant side:

H = 5

P = 1

O = 6

Ca = 1

Number of atoms on product side:

H = 6

P = 2

O = 9

Ca = 1

In order to balance this equation, we will multiply H_3PO_4 by 2 on reactant side and we will multiply H_2O by 2 on product side. Hence, the balanced chemical equation is as follows.

2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O

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3 years ago
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