Answer: A. Salt in the Dead Sea is saltier
Answer:
The rows running from left to right are called Periods and the columns going up and down are called Groups.
Explanation:
That would be the element aluminum.
In order to balance the chemical equation, you need to make sure the number of atoms of each element on the reactant side is equal to the number of atoms of each element on the product side. In order make both sides equal, you will need to multiply the number of atoms in each element until both sides are equal
Answer:
I would say discovering who invented the radio.
Explanation:
The other ones can be solved by experiments and the "discovering who invented the radio" cannot be solved by an experiment.
hope this helps.