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Elina [12.6K]
3 years ago
15

How does every singles cell in the body get the substances it needs to carry out the chemical reaction that provides it with ene

rgy?
Chemistry
2 answers:
skelet666 [1.2K]3 years ago
8 0
Are you just asking how the body gets substances that it requires to carry out cellular respiration ?

If yes then the formula for cellular respiration is glucose + oxygen = water + CO2 + ATP (energy).
How body gets glucose :
When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose. The stomach and small intestines absorb the glucose and then release it into the bloodstream. Then the glucose is then let into the cell through the cell membrane and proteins ( active transport , facilitated diffusion)
For oxygen we just breathe it in and oxygen is then let into our cells through the cell membrane ( diffusion ) .
Lesechka [4]3 years ago
3 0
And I don't exactly get what you are trying to ask hit me back up though
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Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction Pb(NO3)2(aq)+2
Setler79 [48]

Answer:

a) volume of ammonium iodide required =349 mL

b) the moles of lead iodide formed = 0.0436 mol

Explanation:

The reaction is:

Pb(NO_{3})_{2}+2NH_{4}I -->PbI_{2}+2NH_{4}NO_{3}

It shows that one mole of lead nitrate will react with two moles of ammonium iodide to give one mole of lead iodide.

Let us calculate the moles of lead nitrate taken in the solution.

Moles=molarityX volume (L)

Moles of lead nitrate = 0.360 X 0.121 =0.0436 mol

the moles of ammonium iodide required = 2 X0.0436 = 0.0872 mol

The volume of ammonium iodide required will be:

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the moles of lead iodide formed = moles of lead nitrate taken = 0.0436 mol

7 0
3 years ago
An object has a mass of 6.8 g and volume of 34 mL. What is the density of the object?​
jenyasd209 [6]

Answer:

<h2>Density = 0.2 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>Density =  \frac{mass}{volume}</h3>

From the question the points are

mass = 6.8 g

volume = 34 mL

Substitute the values into the above formula and solve

That's

<h3>Density =  \frac{6.8}{34}</h3>

We have the final answer as

<h3>Density = 0.2 g/mL</h3>

Hope this helps you

7 0
3 years ago
Why do we use the term formula unit for ionic compounds instead of the term molecule? Select all that apply.
VladimirAG [237]

Answer:

A and C

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