3 years ago

Can someone help me to answer the questions 8 and 9

1 answer:

3 0

Idk it's stupid do it yourself

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EleoNora [17]

Answer: Mutations are important to the evolution of a species because is creates new DNA for a certain gene, creating a new allele.

Hope this helps!!! Good luck!!! ;)

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3 years ago

Andrews [41]

<u>Answer:</u> The experimental van't Hoff factor is 1.21

<u>Explanation:</u>

The expression for the depression in freezing point is given as:

$\Delta T_f=iK_f\times m$

where,

i = van't Hoff factor = ?

$\Delta T_f$ = depression in freezing point = 0.225°C

$K_f$ = Cryoscopic constant = 1.86°C/m

m = molality of the solution = 0.100 m

Putting values in above equation, we get:

$0.225^oC=i\times 1.86^oC/m\times 0.100m\\\\i=\frac{0.225}{1.86\times 0.100}=1.21$

Hence, the experimental van't Hoff factor is 1.21

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3 years ago

e-lub [12.9K]

The answer is A: accuracy

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1 year ago

Vika [28.1K]

Answer: You started with 8

Explanation: the amount of products is equal to the amount of reactants

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3 years ago

Elza [17]

Answer:

foot

Explanation:

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2 years ago