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lions [1.4K]
3 years ago
6

What is the source of almost all energy on earth

Chemistry
2 answers:
AnnyKZ [126]3 years ago
5 0

Answer:

Sun

Explanation:

I just took the quiz

Sergeeva-Olga [200]3 years ago
3 0

Answer:

maybe sun is the answer

Explanation:

because it is the source of almost every energy of eaeth becoz even we human and other every living organisms cant leave without sun

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True or False<br>Electrons contribute most of the mass of an atom?​
Natali5045456 [20]

Answer:

False

Explanation:

  • Mass of the atom is mostly contributed by nucleus.
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  • Mass number defined by No of protons+No of neutrons
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Which of these is a mixture<br> A. salad<br> B. sugar<br> C. water<br> D. potassium
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The answer to this question is A.) Salad
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Helppp!!!! plz :-((
Mashutka [201]
<h2><u>Answer:</u></h2>

C: They should try to reproduce Dr. Maxwell's research to verify his results

<h2><u>Why?</u></h2>

Other scientists may or may not agree to Dr. Maxwell, so they should test Dr. Maxwell's research again to see if his conclusion is true or not.

Hope this helps!

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3 years ago
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One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper (II) carbonate,
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Answer:

6,04x10⁻³M

Explanation:

For the reaction:

Fe(s) + CuSO₄(aq) → Cu(s) + FeSO₄(aq)

The precipitate of Cu(s) weights 96,0 mg. In moles:

Moles of Cu(s):

0,096g×(1mol/63,546g) = 1,51x10⁻³ moles of Cu(s). If you see the balanced equation 1 mole of CuSO₄ produce 1 mole of Cu(s). That means moles of CuSO₄ are the same of Cu(s), <em>1,51x10⁻³ moles of CuSO₄</em>

As volume of the solution is 250 mL, 0,250L, the molar concentration of the original solution is:

1,51x10⁻³ moles of CuSO₄ / 0,250L = <em>6,04x10⁻³M</em>

I hope it helps!

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4 years ago
Name a common greenhouse gas containing ony hydrogen and oxygen
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