2 years ago

This diagram shows evidence used to support the cell theory. Which statement of the cell theory does this diagram support?

Chemistry

1 answer:

Ulleksa [173]2 years ago

4 0

Answer:

Its the second one

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if 15 mol C is mixed with 10 mol O2 which reactant is the limiting reactant? Which reactant would be the excess reactant?

ioda

Answer:

C is the excess reactant.

Explanation:

Reaction is C + O2 --> CO2

1mol of C required to react with 1mol O2

Therefore 15 - 10 = 5moles of C will be in excess

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2 years ago

Acetone is the main chemical in nail polish and has a density of 0.7857 g/mL. What is the volume of 6.54g of acetone ?

trapecia [35]

8.3mL

Explanation:

Given parameters:

Mass of acetone = 6.54g

Density of acetone = 0.7857 g/mL

Unknown:

Volume of acetone = ?

Solution:

Density is defined as the mass per unit volume of a substance. It is expressed mathematically as shown below:

Density = $\frac{Mass}{Volume}$

Since the unknown is volume, we make it the subject of the formula

Volume = $\frac{mass}{density}$

Input the values;

Volume = $\frac{6.54}{0.7857}$ = 8.3mL

learn more:

Volume brainly.com/question/2690299

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Assume that the biocapacity of Earth does not change and that human population growth continues to increase. How will people's e

Alexandra [31]

A. The Average Ecological footprint will need to decrease . 6-11-18

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State the number of protons, electrons and neutron

skad [1K]

Answer:

You didn't show which element it is. The proton is the atomic number, the electron is the same number of protons, and the neutron is the atomic mass rounded to the nearest whole number minus the proton.

Explanation:

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2 years ago

What is the electron configuration of an element with atomic number 20?

Vedmedyk [2.9K]

[Ar]4s^2
hope it helps

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