I believe the answer is excess reactant?
Answer:
N with a charge of (-3) is nitride
Explanation:
H and Br are both non-metals which means the bond that comes in between them is covalent. If the composing elements are non-metal and metal, then the bond should be ionic. In this case, HBR is considered polar because the Br atom pulls on the electron much harder than the H atom. Answer is C.
Answer:
我實際
Explanation:
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Independent variables don't change
Dependent variables change as a result of the alteration made during the experiment