Elements & Compounds

What is the chemical symbol for Sodium?

• Na

• So

• S

• N

What is the chemical formula for table salt?

• KCl

• NaCl

• CaCl2

• MgCl2

What is the chemical symbol for Gold?

• Ag

• Au

• Pb

• Fe

What is the chemical formula for Ethanol?

• C2H5OH

• C2H6O

• C2H4O

• C2H5O2

What is the chemical symbol for Chlorine?

• C

• Cl

• Ch

• Co

What is the chemical formula for Glucose?

• C6H12O6

• C5H10O5

• C6H10O6

• C7H14O7

What is the difference between an element and a compound?

• An element is made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

• An element can be broken down into simpler substances, while a compound cannot.

• An element consists of molecules, while a compound consists of atoms.

• An element is a pure substance, while a compound is a mixture of elements.

What is a molecule?

• A molecule is a single atom.

• A molecule is a group of two or more atoms bonded together, which can be either elements or compounds.

• A molecule is a type of chemical reaction.

• A molecule is a mixture of different substances.

What is the chemical formula for Calcium Carbonate?

• CaCO3

• CaCO2

• Ca2CO3

• C3CaO

What is the chemical symbol for Oxygen?

• O

• Ox

• O2

• O3