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3 years ago

Does anyone know the answers to these two questions

Chemistry

1 answer:

BlackZzzverrR [31]3 years ago

6 0

Answer:

4. D

5. A

Explanation:

4. it is D because hot weather's away easily naturally but when it's wet it breaks off very easily.

5. Organic matter includes any plant or animal material that returns to the soil and goes through the decomposition process. In addition to providing nutrients and habitat to organisms living in the soil, organic matter also binds soil particles into aggregates and improves the water holding capacity of soil.

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Explain how the principal of uniformitarianism is used to interpret earths past

vesna_86 [32]

Answer:

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2 years ago

URGENT WILL GIVE BRAINLEIST In two or more complete sentences explain how to balance the chemical equation,

Pani-rosa [81]

Answer:

you add the atoms together

Explanation:

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2 years ago

Read 2 more answers

The pressure is recorded as 738 mmHg.Convert this measurement to atmosphere (atm)

garri49 [273]

As we know that 760 mmHg is equal to 1 atm.

So,
If 760 mmHg is equal to = 1 atm
Then
738 mmHg will be equal to = X atm

Solving for X,
X = (738 mmHg × 1 atm) ÷ 760 mmHg

X = 0.971 atm

Result:
738 mmHg is equal to 0.971 atm.

4 0

3 years ago

If a system performs 147 kJ of work while receiving 47 kJ of heat, what is change in its internal energy?

Verdich [7]

Answer:

-100 kJ

Explanation:

We can solve this problem by applying the first law of thermodynamics, which states that:

$\Delta U = Q-W$

where:

$\Delta U$ is the change in internal energy of a system

Q is the heat absorbed/released by the system (it is positive if absorbed by the system, negative if released by the system)

W is the work done by the system (it is positive if done by the system, negative if done on the system)

For the system in this problem we have:

W = +147 kJ is the work done by the system

Q = +47 kJ is the heat absorbed by the system

So , its change in internal energy is:

$\Delta U = +47 - (+147) =-100 kJ$

6 0

2 years ago

A student has two unopened 33 CL cans containing carbonated water. Can A has been stored in the garage 32 degrees and can B has

IgorC [24]

Answer:

A. Can A will make a louder and stronger fizz than can B.

Explanation:

The solubility of a gas in a liquid decreases as the temperature increases, so the warmer can will have more undissolved carbon dioxide.

The warmer can will be under greater pressure, so it will make a louder and stronger fizz.

7 0

3 years ago