Answer:
B) conducts electricity
Explanation:
Metals are conductors, literally meaning they conduct electricity.
One metal is liquid at room temp (there might be one more but I only know of mercury).
The reactivity depends on the placement in the periodic table.
If it conducts electricity, it can't be an insulator.
Answer: Cu
Explanation: It is Cu because the origin of the word Copper comes from the latin word "Cuprum".
I just looked it up and it says "Na2CO3 (sodium carbonate) is neither an acid nor a base. It is a salt..." I really hoped this helped you, if not I'm sorry.
Answer:
12.5 moles H2SO4
Explanation:
Calculate the amount, in moles, of 2.5 L of a 5.0 M sulfuric acid, H2SO4.
5.0 M means 5 moles per liter.
so in 2.5 L we have
5.0 X 2.25 = 12.5 moles H2SO4