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kumpel [21]
3 years ago
13

What Structure keeps harmful chemicals out of the animal cells

Chemistry
2 answers:
PSYCHO15rus [73]3 years ago
5 0

The cell membrane is what keeps harmful chemicas  out of an animal cell. It regulates traffic of all chemicas and proteins in and out of the cell.

dusya [7]3 years ago
4 0

The cell membrane keeps harmful chemicals out of animal cells.

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In which group of teh modern periodic table are there very reactive metals and very reactive non metals?​
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Metals :-

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Non-metals :-

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What are some natural resources that are limited on earth
inysia [295]

Answer:

oil, ores, and fossils.

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What is the entropy change in the environment when 5.0 MJ of energy is transferred thermally from a reservoir at 1000 K to one a
Leni [432]

Answer:

The entropy change in the environment is 3.62x10²⁶.

Explanation:

The entropy change can be calculated using the following equation:

\Delta S = \frac{Q}{k_{B}}(\frac{1}{T_{f}} - \frac{1}{T_{i}})

Where:

Q: is the energy transferred = 5.0 MJ

k_{B}: is the Boltzmann constant = 1.38x10⁻²³ J/K  

T_{i}: is the initial temperature = 1000 K

T_{f}: is the final temperature = 500 K

Hence, the entropy change is:

\Delta S = \frac{5.0 \cdot 10^{6} J}{1.38 \cdot 10^{-23} J/K}(\frac{1}{500 K} - \frac{1}{1000 K}) = 3.62 \cdot 10^{26}                                    

Therefore, the entropy change in the environment is 3.62x10²⁶.

I hope it helps you!          

7 0
3 years ago
The dissociation of a/an ________ releases hydrogen ions and increases the concentration of hydrogen ions in a solution.
Crank
Acid...hope it helps
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When substances combine to form mixtures they keep their properties.<br> O<br> True<br> O<br> False
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True

Explanation:

8 0
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