Review Chemical Reactions

How many oxygen atoms are in this chemical formula?

• 6 oxygen atoms
• 2 oxygen atoms
• 3 oxygen atoms
• 4 oxygen atoms

Tags

NGSS.MS-PS1-1

 Mg  +  ___ HCl  →   MgCl₂  +   H₂

• 1
• 2
• 3
• 4

Balance this equation-
__P₄ + __O₂ --> __P₂O₃

• it is already balanced
• 2, 1, 3
• 1, 2, 3
• 1, 3, 2

Tags

NGSS.HS-PS1-7

CH₄ + 2O₂ --> 2H₂O + CO₂

• Decomposition

• Double replacement

• Combustion

• Single Replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Two Reactants and One Product

• Decomposition

• Synthesis

• Combustion

• Single Replacement

One element replaces another in a compound.

• Synthesis
• Combustion
• Single Replacement
• Double Replacement

One reactant breaks down into several products.

• Decomposition

• Synthesis

• Combustion

• Single Replacement

What does (aq) mean in a chemical reaction?

• Ag
• silver
• aqualirious
• aqueous

What is the left part of a chemical equation called?
H_{2 +} O → H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.HS-PS1-7

What is the right part of a chemical equation called?
H_{2 +} O → H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation