3 years ago

How are plant cells different from animal cells?

Chemistry

2 answers:

marusya05 [52]3 years ago

8 0

Answer:

They can convert the sun's energy into food.

castortr0y [4]3 years ago

8 0

Answer:

its letter A

because Plant cells have a cell wall, but animals cells do not.

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A cylinder is filled with 10.0 L of gas and a piston is put into it. The initial pressure of the gas is measured to be 273. kPa.

Ann [662]

P2 = 54.6 kPa

Explanation:

Given:

V1 = 10.0 L. V2 = 50.0 L

P1 = 273 kPa. P2 = ?

We can use Boyle's law to solve this problem.

P1V1 = P2V2

Solving for P2,

P2 = (V1/V2)P1

= (10.0 L/50.0 L)(273 kPa)

= 54.6 kPa

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3 years ago

If the final mass of the system is 120g, what was the percent yield of the reaction?

Neko [114]

Answer:

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3 years ago

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r-ruslan [8.4K]

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4 years ago

If 14.5 kJ of heat were added to 485 g of liquid water, How much would its temperature increase?

olga55 [171]

<u>Answer:</u> The increase in temperature is 7.14°C

<u>Explanation:</u>

To calculate the change in temperature, we use the equation:

$q=mc\Delta T$

where,

q = heat absorbed = 14.5 kJ = 14500 J (Conversion factor: 1 kJ = 1000 J)

m = mass of water = 485 g g

c = specific heat capacity of water = 4.184 J/g.°C

$\Delta T$ = change in temperature = ?

Putting values in above equation, we get:

$14500J=485g\times 4.184J/g.^oC\times \Delta T\\\\\Delta T=7.14^oC$

Hence, the increase in temperature is 7.14°C

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3 years ago

Which of the following orbitals is the largest in size?

tamaranim1 [39]

The answer would be B.

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