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Virty [35]
3 years ago
15

PLEASE HELP ME!!

Chemistry
2 answers:
mrs_skeptik [129]3 years ago
6 0

Answer:

The answer to this question is D.

Explanation: We know that only plants have a cell wall so that is helpful and we know that plants are green because of their chloroplast. So the answer is D, cell wall, and chloroplast.

LUCKY_DIMON [66]3 years ago
4 0

Answer:

A

Explanation:

plant cells have a nucleus, which controls the cells activities. and the chloroplast contains a green pigment called the chlorophyll and is where photosynthesis occurs.

A animal cell does not have a nuclues, making it Prokaryotic.

Hoping i was of use :)

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HELLLLLLLLPPPPPPPPPPPPPPPPPP
stealth61 [152]

Answer:

aa

Explanation:

There is a lowercase a on both sides.

4 0
2 years ago
0.0145 moles of helium gas are introduced into a balloon so that the volume of the balloon is 2.54 liters. An additional amount
olga_2 [115]

Answer:

4.43L is final volume of the ballon

Explanation:

Avogadro's law of ideal gases states that <em>equal volumes of gases, at the same temperature and pressure, have the same number of molecules</em>.

The formula is:

\frac{V_1}{n_1} =\frac{V_2}{n_2}

Where V and n are volume and moles of the gas in initial and final conditions.

If the initial conditions are 0.0145 moles and 2.54L and final amount of moles is 0.0253moles, final volume is:

\frac{2.54L}{0.0145mol} =\frac{V_2}{0.0253mol}

V₂ = <em>4.43L is final volume of the ballon</em>

6 0
3 years ago
Wh
sergey [27]

The correct option would be 3.

Only thermal energy changes


Hope this helps you

Brainliest would be appreciated

-AaronWiseIsBae

5 0
3 years ago
Read 2 more answers
What are the two most common elements found in the universe?​
cluponka [151]

Answer:

That would be hydrogen and helium! :)

3 0
2 years ago
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The metalloid that has three valence electrons is .
lawyer [7]

Answer:

Boron

Explanation:

4 0
3 years ago
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