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WorksheetsTypes of Chemical Reaction and Balancing Equation
Total questions: 20
Worksheet time: 10mins
Combination reactions always:
involve an element and an ionic compound.
form only one product
use only one reactant.
require oxygen gas.
The equation below is an example of
double replacement reaction.
combination reaction.
single-replacement reaction.
decomposition reaction.
The reaction is a(n)
combustion reaction.
decomposition reaction.
synthesis reaction.
combination reaction.
Which of the following type of chemical reactions results in a single product?
double replacement reaction.
Synthesis/Combination Reaction
single replacement reaction
decomposition reaction
Which of the following has the correct coefficient to balance the chemical equation:
__ Na₃PO₄ + __ HCl → __ NaCl + __ H₃PO₄
Na₃PO₄ + 3 HCl → NaCl + H₃PO₄
Na₃PO₄ +3 HCl → 3 NaCl + H₃PO₄
Na₃PO₄ + HCl → NaCl + H₃PO₄
3 Na₃PO₄ + HCl → 3 NaCl + H₃PO₄
Which of the following has the correct coefficient to balance the chemical equation:
__ CaCl₂ + __ Na₃PO₄ → __ Ca₃(PO₄)₂ + __ NaCl
2 CaCl₂ + 2 Na₃PO₄ → 2 Ca₃(PO₄)₂ + NaCl
CaCl₂ + Na₃PO₄ → Ca₃(PO₄)₂ + NaCl
3 CaCl₂ + 2 Na₃PO₄ → Ca₃(PO₄)₂ + 6 NaCl
3 CaCl₂ + 2 Na₃PO₄ → Ca₃(PO₄)₂ + 3 NaCl
Which of the following has the correct coefficient to balance the chemical equation:
__ KOH + __ H₃PO₄ → __ K₃PO₄ + __ H₂O
2 KOH + H₃PO₄ → K₃PO₄ + H₂O
3 KOH + 2 H₃PO₄ → 3 K₃PO₄ + 3 H₂O
KOH + H₃PO₄ → K₃PO₄ + 6 H₂O
3 KOH + H₃PO₄ → K₃PO₄ + 3 H₂O
How many Oxygen in 2(NO3)?
1
6
3
5
Which of the following is NOT a true statement concerning what happens in all chemical reactions?
The bonds of the reactants are broken and new bonds of the products are formed.
The starting materials are named reactants.
New atoms are formed as products.
The ways in which atoms are joined together are changed.
In a combustion reaction, one of the reactants is _____.
metal
oxygen
hydrogen
nitrogen
In every balanced chemical equation, each side of the equation has the same number of _____.
coefficients
moles
molecules
atoms
Which is the correct equation for Copper (I) chloride?
CuCl
CuCl2
CoCl
CCl
What is the correct name of N2O3?
Dinitrogen Tetroxide
Nitrogen (II) Oxide
dinitrogen trioxide
Nitrogen Trioxide
In dichlorine heptoxide, how many number of atoms does the oxygen has?
4
6
7
5
What is the correct chemical equation of diphosphorus pentoxide?
P2O7
P2O4
P2O5
PO6
when a wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted is an example of?
Bohr's Law
Law of Electron Configuration
Law of Energy
Law of conservation of Mass
All of the following are examples of combustion reaction EXCEPT ______.
2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
C3H8(g)+5Li2(g)→3O2(g)+4H2O(g)
CH4 + 2O2 → CO2 + 2H2O
CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)
Why is there a need to balance a chemical equation?
To follow the octet rule of atoms which states it should have 8 valence electron
To balance the number of atoms in the reactants side and product side
To rearrange atom in the reactants side and product side
To satisfy the Law of conservation of matter
is this a balance chemical equation?
invalid equation
yes
no
neither
2 Li (𝑆) + 𝐶𝑙2 (𝑔) -----> 2 LiCl(𝑆)
the chemical equation is read as?
Lithium reacts with Chlorine gas yields to Lithium chloride
2 moles of Lithium solid reacts with 1 mole of Chlorine gas heated to 2 moles of Lithium chloride
2 moles of Sodium reacts with 1 mole of Chlorine gas yields to 2 moles of Sodium chloride
2 moles of Lithium solid reacts with 1 mole of Chlorine gas yields to 2 moles of Lithium chloride solid
