Most climate scientists agree the main cause of the current global warming trend is human expansion of the "greenhouse effect"1 — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping.
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The first blank is Covalent compound
For the second blank, you are correct, though you may elaborate by specifying 'valence' electrons
Answer: 633.6 g of 
can be produced from the decomposition of 4.8 moles of 
Explanation:
The balanced chemical equation for decomposition of 
is :
According to stoichiometry :
1 mole of produce = 3 moles of
Thus 4.8 moles of will rproduce=
of
Mass of 
Thus 633.6 g of can be produced from the decomposition of 4.8 moles of
Answer:
neutralization reaction
Explanation: Because Neutralization Reactions. ... from a neutralization reaction
