__________ is the chemical formula of Calcium chloride.
CaCl
CaCl2
Ca2Cl
None
Chlorate ion has charge equal to ____________.
+1
-1
+2
-2
Zinc reacts with HCl to give zinc chloride and ____________.
Hydrogen
Chlorine
Zinc
Cations are ___________.
electropositive
electronegative
neutral
none
____________ is the chemical formula of ammonium chloride.
NH2Cl
NH4Cl
NH3Cl
N2HCl
Calcium hydroxide contains one atom of calcium, two atoms of hydrogen and ________ atoms of oxygen.
1
3
2
4
Magnesium reacts with oxygen and forms____________.
Magnesium dioxide
Magnesium trioxide
Magnesium oxide
Anions are ___________.
CO2 contains one atom of carbon and two atoms of oxygen, the atomic weight of carbon is 12 and the atomic weight of oxygen is 16. The molecular weight of CO2 is
22
36
44
59
Calcium carbonate reacts with Hydrochloric acid and gives _________ ,water and CO2..
Calcium oxide
Calcium hydroxide
Calcium chloride
