Atoms, Elements and Compounds

Which of the following is a compound?

• Si

• CO₂

• Cl

• He

• Ti

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O

• HCl

• NaCl

• Au

• CaCO₃

This picture represents which of the following?

• element

• compound

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element

• compound

Tags

NGSS.MS-PS1-1

Which of the following could be a symbol on the periodic table of elements?

• CC

• Cc

• cc

• CcC

• CK1

What is NOT made up of two or more elements that are chemically combined?

• Element

• Compound

• Mixture

• Solid

• Liquid

Which of the following is an element?

• Gold

• Air

• Water

• Carbon Dioxide

• Nitrous Oxide

How many elements are there in CuSO₄?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

Water is made up of hydrogen and oxygen, two elements that were chemically combined. This makes water a(n)

• atom

• compound

• element

• mixture

Tags

NGSS.MS-PS1-1

Which of the following substance is NOT a compound?

• Carbon dioxide

• Hydrogen

• Salt

• Sugar

Tags

NGSS.MS-PS1-1