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drek231 [11]
3 years ago
13

9. The major human causes of extinction today are

Chemistry
1 answer:
DaniilM [7]3 years ago
8 0

Answer:

c

Explanation:

because of over-hunting, poaching, pollution, loss of habitat, the arrival of invasive species, and other human-caused problems

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When 0.25 moles of NH3 are produced according to the reaction below, how many moles of H2 must have reacted?
marissa [1.9K]

Answer:

Explanation:

by stoichiometry

nNH3/2=nH2/3

0.25/2=nH2/3

nH2=0.25×3/2

nH2=0.375 mol

so its 0.38 mol

6 0
3 years ago
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Help me please!!!!!!!!?????
kirill [66]

Answer:

i believe its A or D

Explanation:

sorry is its wrong

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4 0
3 years ago
Once a slide is prepared and placed onto the microscope, the magnification and focus need to be altered. Describe how to change
Harlamova29_29 [7]

Answer:

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Explanation:

我實際上不知道答案,我只是為了點我實際上不知道答案,我只是為了點數而這樣做,哈哈,祝你好運哈哈數而這樣做,哈哈,祝你好運哈哈

5 0
3 years ago
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.<br> What energy transformations take place when you exercise?
jolli1 [7]
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3 years ago
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When a new bond forms in a chemical reaction, what happens?
Kisachek [45]
The answer to this question would be A. Energy is released. 

When a chemical bond is a form, the bond will either suck up energy or produce energy. So, to be precise the energy is not always released but also can be absorbed. In this case, the energy released number will be a minus.

Options B and C is definitely wrong since the bond is formed by an electron, it won't affects neutron/proton.
Option D might be true since the product is made of 2 or more atoms then it would seem larger. But the size of the actual atom won't be increased.

8 0
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