Answer:
See explanation
Explanation:
A limiting reactant is the reactant in a reaction that is done reacting first, because there are less moles of it than are needed for a full reaction with the other compound or compounds.
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Answer:
-2
Explanation:
Calcium is the element of second group and forth period. The electronic configuration of Calcium is - 2, 8, 8, 2 or
There are 2 valence electrons of Calcium.
Thus, calcium loses two electrons to sulfate ion and sulfate ion accepts these electrons to form ionic bond.
Calcium sulfate,
is formed when 2 valence electrons of calcium are loosed and they are gained by sulfate ion.

Thus, the charge on the sulfate ion is -2.
The pairing that accurately matches a bio molecule polymer with its monomer subunit would be B. Protein and amino acids.
Answer:
denotes the molar hydrogen ion concentration
Explanation: