2 years ago

Help Please! its another cell functions

Chemistry

2 answers:

kolezko [41]2 years ago

6 0

Answer:

The oxygen molecules will spread out evenly and many will enter the cell by passing through tiny openings in the membrane.

Explanation:

A cell membrane will allow the oxygen to enter by diffusion. Diffusion is the movement of particles from an are of higher concentration to an area of lower concentration. Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion.

EleoNora [17]2 years ago

3 0

Answer: last option!

Explanation:

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(25points) Explain in your own words the difference between atomic mass and atomic number. Where can you find this information o

Fiesta28 [93]

Answer:

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Explanation: And yes you know that 2332423 .

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3 years ago

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lapo4ka [179]

Answer:

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3 years ago

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Calculate the mass in grams of 8.35 × 1022 molecules of CBr4.

antiseptic1488 [7]

Answer: 45.983 g CBr₄

Explanation:

To convert from moles to grams, you know that we will need molar mass and Avogadro's number.

Avogadro's number: 6.022×10²³ molecules/mol

Molar mass: 331.627 grams/mol

Now that we have what we need, you can use these to solve for grams. $8.35*10^2^2molecules CBr_{4} *\frac{1mol}{6.022*10^2^3molecules} *\frac{331.627 g}{1 mol} =45.983 g$

Our final answer is 45.983 g CBr₄.

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3 years ago

For scientific notation, when i move the decimal to the left the the exponent get bigger or smaller?

xeze [42]

I'm not sure what you mean. Besides, I feel like you're talking math.
But anyways, if you have 120 let's say
The scientific notation is 1.20 × 10^2
if you have 125000
the scientific notation is 1.25 × 10^ 5
The number of times you go left the decimal, I guess exponent increases
So yea

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2 years ago

CN- is a Bronsted - Lowry base. What will this substance form when it accepts a proton?

sergejj [24]

It will form HCN Hydrogen Cyanide.

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2 years ago