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miv72 [106K]
4 years ago
6

Which of the following is a process in which carbon is released back into the

Chemistry
2 answers:
vovikov84 [41]4 years ago
6 0
4) respiration .........
yulyashka [42]4 years ago
3 0

Answer:

Respiration

Explanation:

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13. 8 hrs

12. 8.89 meters per second squared

11. -0.75 meters per second squared

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3 years ago
Which particles are equal in number for an atom with a neutral charge? ​
vodka [1.7K]
Electrons and protons
4 0
3 years ago
A total of 1 mol iron oxide has a mass of
o-na [289]
<h3><u>Answer;</u></h3>

160 g

<h3><u>Explanation;</u></h3>

1 mole of a compound contains a mass equivalent to the relative formula mass of that particular compound.

the formula of iron oxide is Fe2O3

R.A.M of Iron = 56 , while that of oxygen is 16

RFM = (56 ×2) + (16 ×3)

       = 112 + 48

       = 160

Therefore, 1 mole of Iron oxide contains 160 g

5 0
4 years ago
Read 2 more answers
If the person in the figure wants his shadow to be 3 feet long, how far should he move and in what direction?
Nostrana [21]

Answer:

3 2/3 ft to the right

Explanation:

The picture of the question in the attached figure N 1

To better understand the problem see that attached figure with letters N 2

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

In this problem

Triangle A.D.F is similar to Triangle B.D.E ----> by AA Similarity Theorem

so

\frac{A.F}{B.E}=\frac{F.D}{E.D}

we have

A.F=15\ ft\\B.E=6\ ft\\F.D=(10+E.D)\ ft

substitute

\frac{15}{6}=\frac{10+E.D}{E.D}

solve for E.D

15E.D=60+6E.D\\9E.D=60\\\\E.D=\frac{20}{3}\ ft

E.D is the length of the shadow

so

The person should move to the right x feet

x=\frac{20}{3}-3\\\\x=\frac{11}{3}\ ft

convert to mixed number

\frac{11}{3}\ ft=\frac{9}{3}+\frac{2}{3}=3\frac{2}{3}\ ft

5 0
3 years ago
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