Reactions
In the following reaction, identify the reactant(s):
NaCl + MgO -> Na2O + MgCl2
NaCl and MgO
Write the name of this compound:
KCl
Potassium Chloride
What is the valence of NO3?
1
What is the atomic mass of Na in NaCl?
22.99 or 23 amu
What is the molar mass of O2
about 32 g/mol
What are the products of the following reaction:
MgCl2 + K2CO3 -> ?
MgCO3 + KCl
What is the chemical formula for Manganese (II) Sulfate?
Mn(SO4)
What is the valence assigned to column 14?
4
What is the atomic mass for Krypton (no symbols hehe)
Krypton (Kr) = 83.8 amu
Find the molar mass of Al2O3
101.96 g/mol
In a chemical reaction, Copper (II) reacts with Zinc (II) Chloride, at the end of this reaction you are left with two products.
Write out the reaction and identify what are the products.
Cu2(s) + ZnCl2 -> Zn2(s) + CuCl2
What is the name of the following compound?
FeO
Iron (II) Oxide
What is the valence of Fluorine (F) and Xenon (Xe)?
Fluorine (F): 1
Xenon (Xe): 0, trick question ;)
In the following chemical formula, identify the atomic mass for each element:
KMnO4
K= 39.098 amu
Mn= 54.938 amu
O= 15.999 amu
Find the Molar Mass for K2Cr2O7
294.18 g/mol (if you did not include the units, sorry no points)
A reaction yields NaCl and MgBr2 as products, what where the possible reactants used for the reaction?
MgCl2 and NaBr
Write out the following compound's chemical name:
Cu(CO3)
Copper (II) Carbonate
Identify the valence of Pb in the compound Pb(NO3)2
Pb= 2
What element has an atomic mass of Caesium?
132.91 amu
What is the molar mass of calcium phosphate?
310.18 g/mol
A reaction using a purple powder and CuCO3 has as products CuCl2 and a purple precipitate, known as CoCO3. What is the purple powder made of?
CoCl2
Write the name for the following compound:
Ag3(PO3)2
Silver (II) Phosphate
In the following formula, what is the valence for Fe?
FePO4
Fe has a valence of 3: Iron (III) Phosphate
Find the atomic mass for Yttrium
88.91 amu
Calculate the molar mass for aluminium bromide
AlBr3= 266.69 g/mol