PLEASE ANSWER SOON 1. Explain Phenomena Fill in the blanks to
complete the sentences.
Some buildings are made of limestone, which
is primarily calcium carbonate, a
Over time,
rain reacts with the
carbonate and the buildings are damaged.

If a || b and e || f, what is the value of y ?

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted