Answer:
1. 2HCl + MgO —-> MgCl2 + H2O
Explanation: You add a 2 in front of the HCl in order to have 2 hydrogens on each side and 2 Cl on each side. Since, Magnesium only has one on each side, they’re already balanced. Same with Oxygen so you leave it alone.
Answer:
the green truck
Explanation:
the truck has 6 boxes which weighs more than 4, 3, or 2
Coal is the answer to the question
False. That description fits the wave's 'frequency'.
It has nothing to do with refraction.