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zaharov [31]
3 years ago
9

Plant cells have a strong, rigid outer layer known as the cell wall. The function of the cell wall is to -

Chemistry
1 answer:
alexgriva [62]3 years ago
7 0

Answer:the third one/ regulates the transfer of material into and out of the cell.

Have a nice day

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9)
Trava [24]

Answer : The volume of gas will be, 113.5 L

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 60 atm

P_2 = final pressure of gas = 30 atm

V_1 = initial volume of gas = 29 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 115 K

T_2 = final temperature of gas = 225 K

Now put all the given values in the above equation, we get:

\frac{60atm\times 29L}{115K}=\frac{30atm\times V_2}{225K}

V_2=113.5L

Therefore, the volume of gas will be, 113.5 L

7 0
3 years ago
Ted wants to hang a wall clock on the wall by using a string. If the mass of the wall clock is 0.250 kilograms, what should be t
maks197457 [2]
The tension should be 0.25
3 0
3 years ago
Read 2 more answers
7. What is the molar mass of each of the following elements?
Pie

Answer:

The molar mass of:

Helium = 4.00 g/mol

Potassium = 39.0983 g/mol

Manganese = 54.94 g/mol.

Boron = 10.81 g / mol

Explanation:

Helium = 4.00 g/mol

Potassium = 39.0983 g/mol

Manganese = 54.94 g/mol.

Boron = 10.81 g / mol

7 0
2 years ago
Read 2 more answers
Which reaction is an example of an acid-base reaction? Which reaction is an example of an acid-base reaction?
oksian1 [2.3K]

Answer:

B) H2SO4 (aq) + Ca(OH)2 (aq) → CaSO4 (aq) + 2 H2O(l)

Explanation:

A is a reaction between a salt FeCl3 and a base KOH

C is a n acid decomposing on it's own to form two products

D is mercury, a metal reacting with oxygen. Two elements reacting. Neither are an acid or a base

E. is an acid reacting with a metal to liberate hydrogen. There is no base

3 0
3 years ago
How many calories are there in 32 Calories?<br> a.64,000<br> b.16,000<br> C.32,000<br> D..032
Vedmedyk [2.9K]

Answer:

32

Explanation:

There cannot be more in a number than the number. Therefore, the answer has to be D, or 32.

Hope this helps! :)

3 0
3 years ago
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