#1 Properties of Matter

Which is the most accurate term for two or more atoms that are chemically bonded together?

• Molecule

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

How can you tell if you are looking at a chemical symbol or a chemical formula?

• Look for subscripts (small numbers)

• Look for lowercase letters

• Count the capitals

• Any of the above

Which of the following is NOT a compound?

• H₂O (Water)

• C₁₂H₂₂O₁₁ (Sugar)

• O₂ (Breathable Oxygen)

• NaCl (Table Salt)

Tags

NGSS.MS-PS1-1

Look at the reactants (CaO + CO₂) in the following chemical equation, CaCO₃ --> CaO + CO_2. The reactants are...

• elements

• compounds

• element & compounds

• a mixture

Tags

NGSS.MS-PS1-1

How many molecules are in this chemical equation, CaCO₃ --> CaO + CO₂?

• 3

• 6

• 5

• 10

Tags

NGSS.MS-PS1-5

How many atoms are in this chemical formula, CaCO₃?

• 3

• 6

• 5

• 10

Tags

NGSS.MS-PS1-1

How is this classified?

• element

• compound

• mixture of compounds

• mixture of elements & compounds

Tags

NGSS.MS-PS1-1

Which is NOT an example of an element?

• CO

• Ti

• He

• S

How many molecules are in this chemical formula 3CO₂?

• 2

• 3

• 5

• 6

Tags

NGSS.MS-PS1-1

How many atoms are in glucose, C₆H₁₂O₆?

• 12

• 6

• 24

• 3

Tags

NGSS.MS-PS1-1