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Keith_Richards [23]
3 years ago
7

Silicon is in the third period on the periodic table. Which orbital levels do its electrons occupy?

Chemistry
1 answer:
rjkz [21]3 years ago
7 0
Si  1s²2s²2p⁶3s²3p²   ([Ne]3s²3p²)
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In this equation, 2Mg + 02 → 2MgO, what's the coefficient of the oxygen molecule?
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A. 2
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What is the mass of 1 mole of MgSO4?
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Answer:

120.37 g

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Copper(II) carbonate undergoes thermal decomposition. One of the pro
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Answer: The green copper (II) carbonate (CuCO_3) changes to black copper oxide (CuO)

CuCO_3(s)\stackrel{\Delta }\rightarrow CaO(s)+CO_2(g)

Explanation:

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Thermal decomposition uses heat for decomposition.

The chemical equation for thermal decomposition of copper (II) carbonate is:

CuCO_3(s)\stackrel{\Delta }\rightarrow CaO(s)+CO_2(g)

The green copper (II) carbonate (CuCO_3) changes to black copper oxide (CuO)

8 0
3 years ago
What product is formed when sodium and chlorine undergo a synthesis reaction? sodium chlorite
pochemuha
Sodium chloride is the answer
6 0
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Blababa [14]

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3 years ago
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