Periodic Table
States of Matter
Chemical Reactions
Moles
Random
100
How many valence electrons are in hydrogen?
1
100
What has a definite volume but not a definite shape?
Liquids
100
Balance this equation:
P4O10 + H2O → H3PO4
P4O10 + 6 H2O → 4 H3PO4
100
What is Avogadro's number?
6.02E23
100
True or False: There are only some labs you need goggles for.
False
200
How do you find the number of neutrons?
Subtract the atomic number from the atomic mass.
200
What is it called when liquid is heated and turned into a gas?
Evaporation
200
What type of reaction is this: 2 H₂O → 2 H₂ + O₂
Decomposition
200
What is the molar mass of AuCl3?
303.6g AuCl3
200
Name the charges that correspond with each of the 3 particles: Protons, Neutrons, Electrons.
Protons: Positive charge
Neutrons: No charge
Electrons: Negative charge
300
Where are the Halogens located on the periodic table?
300
What is the law that says matter can not be created nor destroyed?
The Law of Conservation of Matter.
300
What type of reaction is this: AgNO₃ + NaCl → AgCl + NaNO₃
Double displacement
300
What is the ratio of H2O to Fe? 3Fe + 4H2O -> Fe3O4 + 4H2
4:3
300
Which force holds atoms together within a molecule?
Intramolecular Forces
400
How many elements are on the periodic table?
118
400
What are molecules?
A group of atoms bonded together to create a chemical compound
400
What are the 5 types of chemical reactions?
1. Synthesis
2. Decomposition
3. Single displacement
4. Double displacement
5. Combustion
400
True or False: The molar mass will always be the same for each element.
False
400
What force exists between molecules?
Intermolecular Forces
500
How many liquids are on the periodic table?
2
500
What needs to happen in order for matter to change states?
Energy needs to either be gained or lost
500
What are the 5 indicators of a chemical reaction?
1. Color change
2. Production of an odor
3. Chang of temperature
4. Evolution of a gas
5. Precipitate (formation of a solid)
500
How many moles are in H2O if there are 18 moles in Fe? 3Fe + 4H2O -> Fe3O4 + 4H2
24 moles of H2O
500
What are 2 types of nuclear reactions?
Fission and Fusion