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Y_Kistochka [10]
3 years ago
10

Match the terms to their definitions a reproductive cell

Chemistry
2 answers:
Svetradugi [14.3K]3 years ago
4 0
A cell that reproduces
konstantin123 [22]3 years ago
3 0

Answer:

a cell that reproduces

Explanation:

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PLEASE ANSWER QUICKLY!! 25. Which gas sample contains a total of 3.0 x 1023 molecules?
nevsk [136]

Answer:

14 g of N2

Explanation:

If we look at the options, we will notice that the correct answer needs to be a gas that has about half of the molecular mass of the gas.

If we consider nitrogen gas whose molecular mass is 28g/mol, half of the molecular mass is 14 g.

So;

28g of N2 contains 6.02 × 10^23 molecules of N2

14g of N2 contains 14 × 6.02 × 10^23 /28

= 3.0 x 10^23

4 0
3 years ago
What masses of KCl and H2O are needed to make 250 g of 5.00 % solution?
oksano4ka [1.4K]

Answer:

w/w means weight/weight

Therefore, in a 250 g of solution, 5% needs to be KCl,  

i.e. 5% x 250 = 12.5 g of KCl is needed.

7 0
3 years ago
Please help answering 46)
OLga [1]

Answer:

CO2 is a trigonal planar.

8 0
3 years ago
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amid [387]

Answer:

1

Explanation:

because I don't now I just gussss for no reason b

6 0
3 years ago
A reaction produces 0.837 moles of H 2 O . How many molecules of H 2 O are produced?
AleksAgata [21]

Answer:

5.04 * 10^2^3

Explanation:

The original calculation to find the number of moles which is n=\frac{m}{M} can be rearranged to give the equation m=nM. Therefore the amount of molecules can be found by m = 0.837 *6.02*10^2^3 (multiplying by Avogadro's Number)

3 0
3 years ago
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