Chemical Equation

Chemical Equations and its parts

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QUESTION OF
Chemical Equation
Views #: 584
Questions #: 10
Time: 1 minutes
Pass Score: 80.0%
Style
Mode

A chemical reaction expresses a chemical change

1 pts
volume_mute
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Correct Answer

Explanation

Is this a chemical reaction?

1 pts
volume_mute

Hydrogen reacts with oxygen to make water

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Explanation

Fill in the gaps of the chemical change statement

1 pts

hydrogen + (1) → (2)

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water
oxygen
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Explanation

What do signs mean in this statement

1 pts

hydrogen + oxygen → water

  1. + (1)
  2. → (2)
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two substances interact chemically
a chemical reaction takes place
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Explanation

Is this chemical equation represented properly?

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volume_mute

H2 + O2 → H2O

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Explanation

Name the parts of the chemical equation

1 pts

H2 + O2 → H2O

  1. H2 (1)
  2. O2 (2)
  3. H2O (3)
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products
reactants
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Explanation

In light of the law of conservation of matter, is this a complete chemical equation?

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volume_mute

H2 + O2 → H2O

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Explanation

Can we change the subscripts in the formula for water so that it has two oxygen atoms in it in order align with the law of conservation of matter?

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H2 + O2 → H2O

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Explanation

What can you do in order to accommodate for the missing atom of oxygen in water chemical equation?

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volume_mute

In light of the law of conservation of matter

H2 + O2 → H2O

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Explanation

Balance the chemical equation

1 pts

Hydrogen and chlorine react to make HCl

H2 + Cl2 → [ ? ] HCl

Missing
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Explanation

✕
0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC
Keywords
Year 10