Answer:
B
Explanation:
Coal is a non-renewable resource, so the supply can't produce faster than we can mine it.
Answer:
Valence electrons. they can be used to determine the group of an element.
Explanation:
The compound Fe2O3 contains C) 5 total atoms.
This is because there are 2 atoms of Fe (iron) and 3 atoms of O (oxygen) bonded together in this compound, as denoted by the subscripts, and 2+3 = 5.
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Electronegativity is the measure for an atom to acquire an electron to form a bonding pair. Lithium wants to lose its outermost electron and does not want to acquire any more electrons therefore it would have the lowest EN.
Answer:
The answer is Zn(NO3)2 + 2NaOH => Zn(OH)2 + 2NaNO3.
Explanation:
Zinc is less reactive than Sodium so it will be displaced from NO3- and Sodium will replace Zinc's position.