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WorksheetsPotions Chemical Reactions
Total questions: 20
Worksheet time: 11mins
Which two would be definite signs that a chemical reaction occurred. Select two
color change
bubbles
new substance formed
precipitate forms when two liquids are mixed
Which type of reactions are almost always endothermic
combustion
decomposition
double replacement
hydrolysis
Which types of reaction is a reduction-oxidation (Redox) reaction.
precipitate reaction
single displacement reaction
neutralization reaction
hydrolysis
Which is true or an redox reaction?
Oxygen is one of the products
Oxygen is one of the reactants
The products either gain (forms anion) or lose (form cation) an electron
Acids are formed
What forms in a single replacement reaction, if the single element (A) is a metal?
cation (+ ion)
anion (- ion)
What forms in a single replacement reaction, if the single element (A) is a non-metal?
cation (+ ion)
anion (- ion)
pH stands for what?
power of Hydrogen
pro Hydrogen
potential Hydrogen
In a neutralization reaction, what forms?
CO2 and H2O
Acid and Base
Salt and H2)
Anion and Cation
What is the term used for a synthesis reaction where 2 molecules combine to form H2O as one of the products
Hydrolysis
Decomposition
Electrolysis
Condensation
What is required for a combustion reaction? Select all that apply
Fuel
Heat
Carbon
Oxygen
Which reaction typically occurs with two ionic compounds as reactants
neutralization
precipitation
condensation
combustion
Which 2 compounds would likely form a precipitate based on solubility rules? Select 2!
NaPO4
ClO4
CaCO3
MgOH
Acids form what type of gas when react with Metals?
CO2
OH
H2
O2
Acid forms what gas when reacts with carbonates
H2
CO2
O2
OH
What do pH indicators react to that causes color change for bases?
OH+ ions
H+ ions
Metals
OH- ions
Which is NOT strong alkaline?
NaOH
KOH
Ba(OH)2
NHO3
What forms when bases react with carbonates
OH
CO2
O2
Bases do not react to carbonates
The inputs of a chemical reaction on the left side of the equation are called
reactants
products
ingredients
compounds
electrolysis is this type of reaction
synthesis
decomposition
hydrolytic
single replacement
the term for the number that shows how many atoms of an element are in a molecule or compound
ion
superscript
subscript
coefficient
