Chemical Formulas
Changes of State
Chemical and Physical Changes
Reading the Periodic Table
Chemical Reactions
100
How many carbons (C) are in CO2
1
100
What is kinetic energy?
The energy of motion
100
What type of change is chemical reaction that forms new products?
Chemical Change
100
What is the name of this element?
Neon
100
What are the reactants for this reaction: CH4 + O2 -> CO2 + H2O?
CH4 + O2
200
How many oxygens (O) are in H2PO4
4
200
What happens to kinetic energy when thermal energy is increased?
Kinetic energy increases
200
What type of change is combustion?
Chemical Change
200
What is the symbol for this element
Li
200
What are the products for this reaction: CH4 + O2 -> CO2 + H2O?
CO2 + H2O
300
How many oxygens (O) are in 4O2
8
300
What happens to the attraction between particles as thermal energy increases?
The attraction between particles decreases
300
What type of change is shredding a piece of paper?
Physical Change
300
What is the atomic number for this element?
11
300
How many Oxygens (O) are on the reactant side of this reaction:
2NaOH + H2SO4 -> Na2SO4 + 2H2O ?
6 Oxygens
400
How many hydrogens (H) are in 4Ca(OH)2?
8
400
What state of matter has a fixed shape and a fixed volume?
Solid
400
What type of change is melting an ice cube?
Physical Change
400
What is the atomic mass of this element?
39.098
400
How many Oxygens (O) are on the product side of this reaction:
CaCO3 -> CaO + CO2 ?
3 Oxygens
500
How many sulfurs (S) are in 4Cu(HSO3)2
8
500
A gas will turn into what state of matter when pressure is continuously increased?
Liquid
500
What type of change is boiling water?
Physical Change
500
What is the number of protons in this element?
77
500
How many chlorines (Cl) are there on the product side in this reaction:
FeCl3 + 3H2O -> Fe(OH)3 + 3HCl
3 Chlorines