Balancing chemical equations

Front

Which problem is balanced?
(Check ALL answers)
Options: PbO₂ + 2H₂, SO₂ + H₂0 --> H₂SO₄, 2Na + 2H₂O --> 2NaOH + H₂

Back

2Na + 2H₂O --> 2NaOH + H₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

How many HCl molecules do you need to balance this equation? Mg + __HCl ---> MgCl₂ + H₂

Back

2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is this balanced?
Al + O₂ → 2Al₂O₃

Back

No

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Balance this equation: _Al +_HCl --> _H₂ +_AlCl₃

Back

2,6,3,2

Tags

NGSS.MS-PS1-5

Front

Is the following equation balanced?
2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

Back

yes

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is the following equation balanced?
4Fe + 3O₂ --> 2Fe₂O₃

Back

yes

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is the following reaction balanced?
NaHCO₃ --> Na₂CO₃ + H₂O + CO₂

Back

no

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is the following reaction balanced?
2CH₃OH + 3O₂ --> 2CO₂ + 4H₂O

Back

yes

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the left part of a chemical equation called?
2H₂ + O₂ ---> 2H₂O

Back

Reactants

Tags

NGSS.MS-PS1-1

Front

What is the right part of a chemical equation called?

2H₂ + O₂ ---> 2H₂O

Back

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