Understanding Compounds and Molecules (Quizizz)

What does the subscript in a chemical formula indicate?

• The type of bond between atoms

• The number of molecules

• The amount of atoms in a compound

• The charge of the compound

Which molecule is made of atoms from the same element?

• H₂O

• CO₂

• O₂

• NaCl

Tags

NGSS.MS-PS1-1

What is a compound?

• A mixture of different elements

• A pure substance composed of two or more kinds of atoms bonded together

• A single element

• A blend of elements and compounds

Tags

NGSS.MS-PS1-1

What is true about ionic compounds?

• They contain only nonmetals

• They include at least one metal

• They cannot be broken down into different atoms

• They have inconsistent properties

What type of compound is NaCl?

• Covalent compound

• Ionic compound

• Molecular compound

• Elemental compound

Why is H₂O a covalent compound?

• It contains a metal and a nonmetal

• It contains only nonmetals

• It has a high melting point

• It is a mixture

Tags

NGSS.MS-PS1-1

How can compounds be separated into their elements?

• By physical means

• By chemical reactions

• By mixing with other compounds

• By changing temperature

Tags

NGSS.MS-PS1-5

How do the properties of a pure substance differ from those of a mixture?

• Both have consistent properties

• A pure substance has consistent properties, while a mixture has inconsistent properties

• A mixture has consistent properties, while a pure substance has inconsistent properties

• Both have inconsistent properties

What is the ratio of hydrogen to oxygen in H₂O?

• 1:1

• 2:1

• 1:2

• 3:1

Tags

NGSS.MS-PS1-1

Why is NaCl a compound and not a mixture?

• It can be separated by physical means

• It has a consistent composition

• It contains only one type of atom

• It is a blend of elements

Tags

NGSS.MS-PS1-5