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3 years ago

During chemical reactions, energy is

Chemistry

2 answers:

slamgirl [31]3 years ago

7 0

Answer:

During chemical reactions, energy is used to break bonds in reactants

Explanation:

It is a process in which one or more substances, the reactants, are converted to one or more substances.

maria [59]3 years ago

6 0

All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. Endothermic reactions absorb energy, and exothermic reactions release energy. The law of conservation of energy states that matter cannot be created or destroyed.

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What is sewageband dirty amd water

Sav [38]

Answer:

Sewage is a liquid containing wastes from households, industrial and agricultural activities discharged into water and it is dirty water.

7 0

2 years ago

An oxide of P contains 50% by mass of P. Its Relative molecular mass is 64. The molecular formula of the oxide is (P=32; O=16)

anygoal [31]

Answer:

B) PO2

Explanation:

first solve empirical formula

50%of P and 50%of O

divide each by molecular mass

P. O

50/32. 50/16

1.5. 3.0

divide both by the smallest

1.5/1.5. 3.0/1.5

1. :. 2

Empirical formula=PO2

Molecular formula=PO2

(PO2)n= 64

(32+(16×2)=64

(32+32)n=64

64n=64

n= 1

5 0

2 years ago

How many liters of a 3 M NaOH stock solution would you need to make 552 mL of a 105 mM NaOH dilution

Ganezh [65]

Answer:

0.01932 L

Explanation:

First we convert 105 mM to M:

105 mM / 1000 = 0.105 M

Next we convert 552 mL to L:

552 mL / 1000 = 0.552 L

Then we use the following equation:

C₁V₁=C₂V₂

Where:

C₁ = 3 M

V₁ = ?

C₂ = 0.105 M

V₂ = 0.552 L

We input the given data:

3 M * V₁ = 0.105 M * 0.552 L

And solve for V₁:

V₁ = 0.01932 L

7 0

2 years ago

Will NaCl be soluble or insoluble

attashe74 [19]

NaCl is salt to it is obviously SOLUBLE :)

6 0

3 years ago

What does a gamma ray primarily consist of?

damaskus [11]

Answer is D

Explanation: A gamma ray primarily consists of pure energy and no mass.

6 0

3 years ago