The correct option would be the fact that both bonding electrons had come from the oxygen to form this chemical bond.
The other options are not true.
Answer:
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D= mass/volume so it's 100/68 which equals 1.47cm3
The rate<span> of a </span>reaction increases<span> if the temperature is increased, the concentration of a dissolved reactant is increased and the pressure of a </span>reacting<span> gas is increased. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>