Chemistry Quiz

If magnesium (Mg) and element X make the compound Mg3X2, what "A" group is element "X" in?

• Group 1

• Group 2

• Group 3

• Group 4

• Group 5

Reaction in which a single reactant forms two or more products.

• Decomposition reaction

• Synthesis reaction

• Single replacement reaction

• Double replacement reaction

An isotope has three forms. 30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu. The average atomic mass will be closest to…

• 3

• 3.5

• 3.8

• 4

How many valence electrons does an atom of any Alkali Metal have?

• 7

• 2

• 1

• 8

The three intermolecular forces between molecular compounds listed in order from strongest to weakest are?

• Dipole, London dispersion, hydrogen bonding

• London dispersion, dipole, hydrogen bonding

• Hydrogen bonding, dipole, London dispersion

• Dipole, hydrogen bonding, London dispersion

Which pair has the same empirical formula?

• C2H4O2 and C6H12O6

• C2H4O2 and C6H6

• C2H4O2 and C2H6

• C2H4O2 and C4H8

The d orbital of an atom contains at most:

• 10 electrons

• 6 electrons

• 2 electrons

• 14 electrons

Arrange the elements Te, S, O, Se in order of highest ionization energy to lowest ionization energy:

• S, O, Se, Te

• O, S, Te, Se

• O, S, Se, Te

• O, Se, S, Te

The total number of protons and neutrons in the nucleus of an atom is known as…

• Atomic Number

• Mass

• Atomic Mass

• Mass Number

Fruit Loops, pizza, and Skittles are examples of

• Homogenous mixture

• Heterogenous mixture

• Compound

• Element