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Andru [333]
3 years ago
11

Which two large landmasses formed when Pangaea first started to separate?

Chemistry
2 answers:
PilotLPTM [1.2K]3 years ago
7 0

Answer:

Laurasia and Gondwanaland

Explanation:

Inga [223]3 years ago
7 0

Answer:

D

Explanation:

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What is the atom inventory for the following equation after it is properly balanced? ____NaOH + ____CuCl2 Imported Asset ____NaC
faltersainse [42]

Answer:

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2;

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

Explanation:

NaOH + CuCL2 —> NaCl + Cu(OH)2

The balanced equation can be achieved by doing the following:

There are 2 oxygen and 2 hydrogen atom on the right side. This is balanced by putting 2 in front of NaOH as shown below:

2NaOH + CuCL2 —> NaCl + Cu(OH)2

This makes Na to be unbalanced. Now to balance Na, put 2 in front of NaCl as illustrated below

2NaOH + CuCL2 —> 2NaCl + Cu(OH)2

Now the equation is balanced.

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

4 0
3 years ago
Does ionic or covalent form solid crystals?
Alekssandra [29.7K]

Answer:

I hope it help

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3 years ago
You are confronted by a phosphorus atom. this atom has 15 protons and 17 neutrons. how many electrons does it have
bogdanovich [222]
15 electrons if it is not an ion

8 0
2 years ago
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zzz [600]

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symbol= F

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Which of the following statements does not describe a chemical property of oxygen:
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I have a feeling that #2 is the one.
5 0
3 years ago
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