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s344n2d4d5 [400]
3 years ago
9

What causes water to runoff

Chemistry
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:

C

Explanation:

Runoff occurs when there is more water than land can absorb so  it would be C.

Alika [10]3 years ago
3 0

Answer:

A

Explanation:

The sun heats up earths surface

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I wanted known how many of the reaction below is energy released
Tema [17]

Answer:

2

Explanation:

In two reactions energy is released.

1) C₆H₁₂O₆ + 6O₂    →    6H₂O + 6CO₂ + heat

It is cellular respiration reaction.It involves the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.

Glucose + oxygen → carbon dioxide + water + 38ATP

2) 2H₂ + O₂   →    2H₂O  ΔH = -486 kj/mol

The given reaction is formation of water. In this reaction oxygen and hydrogen react to form water and 486 kj/mol is also released.

The reaction in which heat is released is called exothermic reaction.

Exothermic reaction:

The type of reactions in which energy is released are called exothermic reactions.

In this type of reaction energy needed to break the bonds are less than the energy released during the bond formation.

For example:

Chemical equation:

C + O₂   →  CO₂

ΔH = -393 Kj/mol

it can be written as,

C + O₂   →  CO₂ + 393 Kj/mol

Endothermic reactions:

The type of reactions in which energy is absorbed are called endothermic reactions.

In this type of reaction energy needed to break the bond are higher than the energy released during bond formation.

For example:

C + H₂O   →  CO  + H₂

ΔH = +131 kj/mol

it can be written as,

C +  H₂O  + 131 kj/mol  →  CO  + H₂

5 0
3 years ago
What is the molar mass for Agno3​
Aloiza [94]

Answer:

169.87 g/mol

Explanation:

5 0
3 years ago
HELP PLEASE: Increasing ____ raises the boiling point of a liquid.
Art [367]

Pressure raises the boiling point



7 0
3 years ago
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Jordan plays baseball. Practices ever where he goes. Where would the ball move fastest
Maru [420]

Answer:

A.  Jordan is on a moving train. He throws the ball toward the front of the train

Explanation:

3 0
3 years ago
What would happen to the kinetic energy of an object if you doubled the mass
Maurinko [17]
Because kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy. Doubling the mass of an object will only double its kinetic energy, but doubling the velocity of the object will quadruple its velocity.

hope this helps
7 0
3 years ago
Read 2 more answers
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