Final Exam Chem 101 practice questions

Front

What is the correct name for Cu2O?

Back

copper (I) oxide

Front

Classify the reaction: 2 Al(s) + 3 Cu(NO3)2(aq) → 2 Al(NO3)3(aq) + 3 Cu(s)

Back

single-displacement

Front

What is the name of Fe2O3?

Back

iron(III) oxide

Front

What is the mass, in grams, of N2 gas in a 14.9 L container at 0.978 atm and 298.1 K?

Back

16.7 grams

Front

The octet rule states that atoms/ions are most stable (except for H, He) when they have __ valence electrons.

Back

8

Front

What is the molar mass of copper (Cu)?

Back

63.55 g/mol

Front

Define a synthesis reaction.

Back

A reaction where two or more reactants combine to form a single product.

Front

What is the formula for calculating the number of moles from mass?

Back

moles = mass (g) / molar mass (g/mol)

Front

What is the ideal gas law equation?

Back

PV = nRT

Front

What is the definition of a limiting reactant?

Back

The reactant that is completely consumed in a chemical reaction, limiting the amount of product formed.