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wlad13 [49]
3 years ago
7

PLEASE BE QUICK!!!!! Which of the following describes how the circulatory and the digestive systems help to maintain homeostasis

by working together?
A. by delivering oxygen to cells B. By having cells the fight infections C. By delivering nutrients from food to cells. D. By carrying waste to the kidneys
Chemistry
1 answer:
Elan Coil [88]3 years ago
5 0

The answer is C. By delivering nutrients from food to cells.

Hope This Helps!        Have A Nice Day!!

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Calculate the MASS if the density is 2.34 g/mL and the volume is 12.50 mL.
AlexFokin [52]

Answer:

<h2>mass = 29.25 g</h2>

Explanation:

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

Density =  \frac{mass}{volume}

Making mass the subject we have

<h3>mass = Density × volume</h3>

From the question

Density = 2.34 g/mL

volume = 12.50 mL

Substitute the values into the above formula and solve for the mass

That's

mass = 2.34 × 12.50

We have the final answer as

<h3>mass = 29.25 g</h3>

Hope this helps you

3 0
3 years ago
What is the definition of bond?
JulijaS [17]
Join or be joined securely to something else, typically by means of an adhesive substance, heat, or pressure.
3 0
3 years ago
Which describes a way to speed up the collisions between hydrogen and oxygen molecules to produce more water?
rodikova [14]
<span>Equation:2H2(g) + O2(g) → 2H2O(g)
</span><span>
Smaller container means less volume, and the molecules will hit the walls of the container more frequently because there's less space available and the pressure will go up. I guess this would mean that the side with fewer moles would be favored as a result. We count the number of moles on the reactants and products and find that there are fewer moles on the product side, so I guess this would favor the product formation.

</span>
4 0
3 years ago
Read 2 more answers
I hate chemistry sm pls help
Liono4ka [1.6K]
Answer:
c
O2: 7 mol
CO2: 4 mil
5 0
3 years ago
We can also use the activity series to predict reactions between a metal and an acid. what are the products of the reaction fe(s
andrew11 [14]

Answer;

FeSO4 (aq) + H2 (g)

Explanation;

The reaction between iron and dilute sulfuric acid gives a salt and hydrogen gas. (iron (ii) sulfate and hydrogen gas).

The equation for the reaction is;

Fe(s) + H2SO4 (aq) = FeSO4(aq) +H2(g)

8 0
4 years ago
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