Chemistry Basics Quiz

Which of the following is an element?

• H₂O

• O₂

• NaCl

• CO₂

Which is an example of a compound?

• He

• O₂

• NaCl

• Fe

Tags

NGSS.MS-PS1-1

Which statement best describes an element?

• Made of only one type of atom

• Made of two or more types of atoms

• Always found in a compound

• Can be broken down by chemical means

Which statement is true about compounds?

• They are made of one type of atom

• They cannot be separated by chemical means

• They have properties different from the elements that form them

• They are always solids

Which of these is NOT a compound?

• CO₂

• H₂O

• NaCl

• O₂

Tags

NGSS.MS-PS1-1

What are two or more different elements chemically combined called?

• Element

• Compound

• Atom

• Molecule

Tags

NGSS.MS-PS1-1

Which of the following is a chemical symbol?

• Si

• C₆H₁₂O₆

• H₂O

• CO₂

Which of the following is a chemical formula?

• Si

• NaCl

• Fe

• O

How many atoms are in C₆H₁₂O₆?

• 6

• 12

• 18

• 24

Tags

NGSS.MS-PS1-1

The chemical formula NH₄Br contains:

• 3 elements and 6 atoms

• 2 elements and 5 atoms

• 4 elements and 7 atoms

• 2 elements and 6 atoms

Tags

NGSS.MS-PS1-1