Chemistry Review

How many elements does PbNO₃ have?

• 2
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

A chemical equation tells us 

• the reactants and the products.
• the elements that make up the reactants and the products.
• the number of atoms that make up the reactants and the products.
• All of the above.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

How many nitrogen atoms does NH₃ have?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

What is the reactant in the following equation?
2NaHCO₃  -> Na₂CO₃  +  CO₂  + H₂O

• NaHCO₃
• Na₂CO₃
• CO₂
• H₂O

Tags

NGSS.MS-PS1-2

What is the chemical formula of Magnesium chloride?

• MgCl

• MgCl₂

• MgC

• MgC_2

Tags

NGSS.MS-PS1-1

What is the chemical formula of sodium sulfate?

• SSO₄

• SoSO₄

• NaSO₄

• Na₂SO₄

How many atoms of sulfur are in each molecule of H₂SO₄?

• 1

• 4

• 2

• 7

Tags

NGSS.MS-PS1-1

How many atoms of carbon are in a molecule of vinyl chloride (C₂H₃Cl)?

• 1

• 3

• 6

• 2

Tags

NGSS.MS-PS1-1

How many atoms of hydrogen are in a molecule of glucose (C₆H₁₂O₆)?

• 12

• 6

• 18

• 4

Tags

NGSS.MS-PS1-1

Consider the chemical equation CH₄ + 2 O₂ → CO₂ + 2 H₂O. In this equation, CH₄ is a

• product
• reactant
• displacement

Tags

NGSS.MS-PS1-5