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zlopas [31]
3 years ago
13

List three organelles found in cells and describe their functions.

Chemistry
2 answers:
kozerog [31]3 years ago
3 0

nucleus: controls cell

cell membrane: controls what goes in and out of a cell

cytoplasm: where chemical reactions take place

Aleonysh [2.5K]3 years ago
3 0

Answer:

Nucleus: DNA Storage

Mitochondrion Energy production

smooth Endoplasmic Reticulum (SER)   Lipid production; Detoxification

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Nuclear fusion differs from nuclear fission because nuclear fusion reactions- True or False
White raven [17]

I think the answer would be True

8 0
4 years ago
How much energy must be removed from a 125 g sample of benzene (molar mass= 78.11 g/mol) at 425.0 K to liquify the sample and lo
riadik2000 [5.3K]

Answer : The energy removed must be, -67.7 kJ

Solution :

The process involved in this problem are :

(1):C_6H_6(g)(425.0K)\rightarrow C_6H_6(g)(353.0K)\\\\(2):C_6H_6(g)(353.0K)\rightarrow C_6H_6(l)(353.0K)\\\\(3):C_6H_6(l)(353.0K)\rightarrow C_6H_6(l)(335.0K)

The expression used will be:

\Delta H=[m\times c_{p,g}\times (T_{final}-T_{initial})]+m\times \Delta H_{vap}+[m\times c_{p,l}\times (T_{final}-T_{initial})]

where,

\Delta H = heat released by the reaction = ?

m = mass of benzene = 125 g

c_{p,g} = specific heat of gaseous benzene = 1.06J/g^oC

c_{p,l} = specific heat of liquid benzene = 1.73J/g^oC

\Delta H_{vap} = enthalpy change for vaporization = 33.9kJ/mole=33900J/mole=\frac{33900J/mole}{78.11g/mole}J/g=434.0J/g

Molar mass of benzene = 78.11 g/mole

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

\Delta H=[125g\times 1.06J/g.K\times (353.0-(425.0))K]+125g\times -434.0J/g+[125g\times 1.73J/g.K\times (335.0-353.0)K]

\Delta H=-67682.5J=-67.7kJ

Therefore, the energy removed must be, -67.7 kJ

4 0
3 years ago
Water molecules are polar because the?
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Answer:

Water (H2O) is polar due to the  bent shape of the molecule. The shape means most of the negative charge from the oxygen is one one side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bonding.

Hope this helps!

6 0
3 years ago
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How many molecules are in 2.00 moles of H20????????
Elis [28]

2x 6.022x10^23= 1.204x10^24

7 0
3 years ago
A person produces two sound waves with a flute, one immediately after the other. Both sound waves have the same pitch, but the s
Nitella [24]

Answer:

A) wavelength

Explanation:

6 0
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