# Balancing Equation- determine how to balance the equation

## Quiz by Marybeth Mechalske

HS Physical Science
Science
North Carolina Standard Course of Study

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20 questions
• Q1
__BaCl₂ + __Na₂SO₄ → __NaCl + __BaSO₄
Users enter free text
30s
PSc.2.2.4
• Q2
__CaO + __H₂O → __Ca(OH)₂
balanced
30s
PSc.2.2.4
• Q3
__CS₂ + __O₂ → __CO₂ + __SO₂
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30s
PSc.2.2.4
• Q4
__Fe +__O₂ → __Fe₂O₃
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30s
PSc.2.2.4
• Q5
__MgS + __O₂ → __MgO + __SO₂
2, 3, 2, 2
30s
PSc.2.2.4
• Q6
__Na + __F₂ → __NaF
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30s
PSc.2.2.4
• Q7
__Na + __MgF₂ → __NaF + __Mg
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30s
PSc.2.2.4
• Q8
__Sn + __HF → __SnF₂ + __H₂
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30s
PSc.2.2.4
• Q9
A chemical substance formed as a result of a chemical reaction
product
30s
PSc.2.2.4
• Q10
A chemical substance that is present at the start of a chemical reaction.
reactant
30s
PSc.2.2.4
• Q11
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
coefficient
30s
PSc.2.2.4
• Q12
A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
subscript
30s
PSc.2.2.4
• Q13
A process during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances.
chemical reaction
30s
PSc.2.2.4
• Q14
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
chemical equation
30s
PSc.2.2.4
• Q15
__CH₄ + __O₂ → __CO₂ + __H₂O
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