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WorksheetsChemical reactions and balancing
Total questions: 20
Worksheet time: 10mins
The reaction of aluminum with dilute H²So⁴
Can be classified as
Synthesis
Decomposition
Single displacement
Double displacement
What a metal atom to replace another kind of metallic ions in a solution, the metal atom must be
Good oxidizing agent
Higher in the activity series the metal in solution
Lower in the electro motive chart than the metal in solution
Equal in the activity to the metal in solution
An endothermic reaction
Has a ΔH value that’s negative and would feel cold if it occurred in your hand
Has a ΔH value that’s positive and would feel cold if it occurred in your hand
Has a ΔH value that’s negative and would feel warm if it occurred in your hand
Has a value that’s positive and would feel warm if it occurred in your hand
During a phase change the temperature of the substance
Increases
Decreases
Stays the same
Goes down then up
In chemical reactions, what does the principle of conservation of mass mean?
Matter is not changed
The total mass of the reactants is greater than the mass of the product
Mass is neither created or destroyed
The total mass of the product is greater than the total mass of the reactants
What are the coefficients used to balance the equation below?
__Ag²O—>__Ag+__O²
2,1,2
2,4,1
2,2,2
1,1,1
Balance this equation:
MgCl² —> Mg⁴+Cl²
4,1,5
4,1,4
It’s already balanced
Which is generalized equation represents a decomposition reaction
AB—> A+B
A+B—>AB
A+BC—> AC+B
AB+CD—>AD+CB
During an exothermic reaction, what happens to the energy in relation to the surroundings?
Released to
Absorb from
Mixed with
Having to do with heat
Decomposition
Synthesis
Displacement
Thermic
Cu + 2Ag(NO₃) —>2Ag + Cu(NO₃)
Double displacement reaction
Decomposition reaction
Synthesis reaction
Single displacement reaction
What type of chemical reaction is
Fe+CuSO₄→Cu+FeSo₄
Single displacement
Double displacement
Synthesis
All of the above
What type of chemical reaction is this
BaCl₂+MgSO₄→BaSO₄+MgCl₂
Single displacement
Combustion
Synthesis
Double displacement
AgNO₃ + NaCl —>
AgCl + NaNO₃
AgCl₂ + NaNO₃
Ag₂Cl + NaNO₃
None of the above
Au + 2HCl —>
AuCl₂ + H₂
AuCl + H₂
Au₂CL + H₂
None of the above
Ni + H₂O —>
NiO + H₂
NiO₂ + H₂
no reaction
None of the above
If you mix Co, Cu, Sn and NiNO₃
Co + Ni(NO₃) —> Co(NO₃) + Ni
Cu + Ni(NO₃) —> Cu(NO₃) + Ni
Sn + Ni(NO₃) —> Sn(NO₃) + Ni
No reaction
Which is more reactive than K
Ba
Na
Li
Ca
Which is more reactive than Fe
Zn
Ni
Pb
Ag
Which Non-Metal is more reactive than Br₂
Li
K
F₂
Cl₂
