Chemical equations
What happens to the atoms in a chemical reaction?
The atoms in a chemical reaction are rearranged.
Which of the following metals is the most reactive?
A. Fe
B. Mg
C. Cu
D. K
K
TRUE OR FALSE:
Australia is larger than the moon.
True
The moon is 3400 km in diameter, while Australia’s diameter from east to west is almost 4000 km.
What is not evidence that a chemical reaction has occurred?
the use of a catalyst
The reaction 2AlCl3 -> 2Al + 3Cl2 is what kind of reaction?
A decomposition reaction.
What are baby rabbits called?
Kits
What are three essential functions of a chemical equation?
Equations identify the substances involved in a reaction, show the composition of those substances, and account for the conservation of all atoms.
What is not an indicator of whether a double-replacement reaction has occurred?
Color change.
What letter does not appear in any american state name?
There's a Z in Arizona, and an X in Texas, but no Q in any of them.
balance the equation:
P4+S8 -> P4S3
8P4+ 3 S8 -> 8P4S3
The reaction TiCl4 + 4Na -> Ti+4NaCl is what kind of reaction?
A single replacement reaction
True or false:
Ketchup was once sold as medicine.
What is true?
Balance the equation:
KClO3 -> KCl +O2
2KClO3 -> 2KCl +3O2
Identify the type of reaction represented by the equation below.
Mg(OH)2 +2HNO3 -> Mg(NO3)2+2H2O
What is a double-replacement reaction?
How long is a jiffy?
1/100th of a second.