Substance in aqueous solution (dissolved in water)

What is a synthesis reaction?

A single compound forms two or more reactants.

What is meant by a balanced equation?

# of atoms on the left side is the same as the right

What is a combustion reaction?

The reaction of a carbon based compound with oxygen.

What is a decomposition reaction?

A single compound breaks down into two or more elements.

What chapter is this?

Chemical Equations and Reactions, Chapter 8 in the Holt Chemistry Book

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Chapter 8 Chemical Equations and Reactions

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#chemical equation and the different types of reactions overview.

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Questions 15

Answers

1
Is the equation balanced: AgNO3 + AlCl3 = AgCl + Al (NO3) 3
Yes
NO
2
What does (aq) mean?
Substance in aqueous solution (dissolved in water)
Name or chemical formula
reactants are heated
3
Which of the following is proof that a chemical change has occurred.
Changes can be reversible.
There is no way to tell.
Changing from a solid to a liquid.
Change in color.
4
Melting an ice cube is an example of?
Physical Change
Neither
Chemical Change
5
What is a synthesis reaction?
A single compound forms two or more reactants.
Heat is released.
Exchange of atoms or ions between two compounds.
6
Balance the equation: FeO3 + H2 = Fe + H2O
Fe2O3 + 3 H2 = 2 Fe + 3 H2O
Fe2O3 + 2 H2 = 3 Fe + 3 H2O
Fe2O3 + H2 = 3 Fe +3 H2O
Fe2O3 + H2 = 2 Fe + 3 H2O
7
Is wood burning a example of chemical change?
No
Kind of
Maybe
Yes
8
What does the (l) mean?
Lithium
Roman numeral for one.
Liquid
9
What is meant by a balanced equation?
# of atoms on the left side is the same as the right
Both sides weigh the same
# of atoms on the left is greater than the right side
10
What is a combustion reaction?
A single compound forms from two or more reactants.
Two compounds in aqueous solution appear to exchange ions.
The reaction of a carbon based compound with oxygen.
A single compound breaks down often with the input of energy
11
Balance the equation: K + Cl2 =KCl
KCl = Cl2 + K
2 K + Cl2 = 2 KCl
Already balanced
3 K + Cl2 = 3 KCl
12
What is a decomposition reaction?
Molar mass
A series of elements that have similar properties.
A single compound breaks down into two or more elements.
Many molecular coumpounds.
13
What chapter is this?
Chemical Equations and Reactions
Chapter 8 in the Holt Chemistry Book
Chapter 8
14
What does the (s) mean?
Sodium
It has no meaning
Silver
Solid
15
Balance the equation: NH3 + O2 = NO + H2O
Already balanced
2 NH3 + O2 = 2 NO + 3 H2O
4 NH3 + 2 O2 = 4 NO + 6 H20
4 NH3 + 5 O2 = 4 NO + 6 H2O

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