The option that would most likely appear in an objective summary is A. <span>Christina Catnese argues that rain barrels are an easy, effective, and inexpensive way to conserve water.
This is the only objective summary among these examples - the other options show a subjective and personal opinion about something, which is not based on facts, but rather personal feelings. This is the reason why they cannot be objective.
</span>
D is false, enzymes can be reused
Formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.
<h3>What are the three conditions under which ionic reactions completed?</h3>
The three conditions under which ionic reactions can run to completion i.e. formation of a gas, formation of a precipitate and formation of a slightly ionized product.
K+(aq) + Br−(aq) + Ag+(aq) + C2H3O2−(aq) → K+(aq) + C2H3O2−(aq) + AgBr(s)
Mg2+(aq) + SO42−(aq) + Ba2+(aq) + 2NO3−(aq) → Mg2+(aq) + 2NO3−(aq) + BaSO4(s)
So we can conclude that formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.
Learn more about reaction here: brainly.com/question/26018275
#SPJ1
The answer to this is older, but it's not a proven fact even though schools teach it as if it were. It is still just a theory if you think about it with how much the earth moves, areas of rock could be complete upside down and no one would know, it would be like history in reverse.
