Chemistry Practice Quiz

Which of the following best describes the compound LiClO3?

• lithium chloride

• lithium chlorine trioxide

• 1 lithium, 3 chlorate

• 1 lithium, 1 chlorine, 3 oxygen

How many total atoms are in a molecule of the compound (NH4)3 PO4?

• 4

• 10

• 13

• 15

• 20

Which of the following best describes Mg(HCO3)2?

• it is named magnesium chloride

• 1 magnesium, 2 hydrogen, 2 carbon and 2 oxygen

• it is named magnesium carbonate

• it has 1 magnesium, 2 hydrogen, 2 carbon, 6 oxygen

Which of the following occur when atoms become ions during the process of chemical bonding?

• electrons are transferred

• protons and electrons are transferred between atoms

• the ions become uncharged

• protons are transferred from one atom to another, creating charged ions

Which of the following occur when strontium and sulfur form a compound?

• the sulfur ion has a -2 charge

• the strontium ion has a -2 charge

• the sulfur ion has a +2 charge

• both ions have no charge because electron transfer has occurred

How are the ion charges balanced when beryllium and oxygen form a compound?

• a +2 and -2 charge are created and these balance each other out

• an appropriate amount of protons are exchanged to balance out the charges

• one ion of oxygen balances two ions of beryllium

• both ions are neutral, balancing each other out

The formula for lead carbonate is Pb(CO3)2. Using Roman numerals, what is the correct way to name this compound?

• lead(IV) carbonate

• lead(IV) carbonate(IV)

• lead(II) carbonate(II)

• lead carbonate

The chemical formula for rubidium oxide is:

• RbO2

• Rb2O2

• Rb2O

• RbO

Tin(IV) iodide is represented by which of the following?

• SnI4

• SnI

• Sn4 I

• SnI2

Iron(III) phosphate is represented by which of the following chemical formulae?

• Fe3PO4

• Fe3(PO4)3

• Fe(PO4)3

• FePO4