Chemistry Reactions

What element is required for a combustion reaction?

• nitrogen

• hydrogen

• silicon

• oxygen

• carbon

In this reaction, how many oxygens are there on each side?

Al(NO₃)₃ + 3Na --> 3NaNO₃ + Al

• 10

• 9

• 7

• 3

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What do we call things on the left side of a chemical reaction? For example: 2Na + Cl₂ --> 2NaCl

Na and Cl₂ are on the left side. Again, what do we call these things?

• left elements

• left overs

• products

• reactants

• chemicals

To be a neutralization reaction, a reaction MUST

• At least contain an acid

• At least contain a base

• Produce CO₂

• React an acid with a base, and produce water

Identify this type of reaction: 
Al (s) + HCl (aq) → AlCl₃ (aq) + H₂ (g)

• Precipitation

• Synthesis

• Combustion

• Single Replacement

Which coefficients are required to correctly balance the equation: 
C₂S₂ + O₂ → CO₂ + S₂O

• 1, 2, 3, 2

• 2, 5, 4, 2 

• 2, 4, 5, 2

• 2, 3, 5, 2 

Tags

NGSS.MS-PS1-5

In the following reaction, what sign is there that a precipitation reaction took place?
AgNO₃ (aq) + NaOH (aq) → AgOH (s) + NaNO₃ (aq)

• The formation of a nitrate

• The (aq), meaning aqueous or dissolved in water

• The (s), meaning the formation of a solid

• The base (OH) reactant 

Tags

NGSS.MS-PS1-2

The formation of water is an example of a ________ reaction because two simple substances (H and O) combine to produce a new compound (H₂O).

• Single Displacement

• Decomposition

• Double Replacement

• Synthesis

Tags

NGSS.MS-PS1-5

C₁₀H₈ + 12 O₂ ---> 10 CO₂ + 4 H₂O

• single replacement

• synthesis

• double replacement

• combustion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

C₁₂H₂₂O₁₁ + O₂ ---> CO₂ + H₂O

• single replacement

• combustion

• double replacement

• synthesis

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5