This group is inert and will not bond with other atoms.
The noble gases or group 18
100
The left hand side of a chemical equation.
The reactants
100
The acid that forms in the muscles during intense exercise.
Lactic acid
100
Early people were producing these types of changes even though they didn't know what was happening. For example - extracting metals from ores and making jewelry.
Chemical changes
100
This energy is known as "heat energy."
Thermal energy.
200
Carbon, Nitrogen, Oxygen, Phosphorus, and Sulfur are examples of this.
Non-metals.
200
Identify this chemical reaction:
CH4 + O2→ CO2 + H2O + heat
A Combustion reaction.
200
This acid is an antioxidant needed by the immune system and is also called vitamin C.
Ascorbic acid
200
People thought you could turn iron and lead into what?
Gold
200
This type of energy can be used to make a weapon of mass destruction.
Nuclear or atomic energy.
300
Most elements on the periodic table are this.
Metals.
300
Identify this chemical reaction:
H2CO3 → H2O + CO2
A Decomposition reaction.
300
This acid is used to make soda fizz in all carbonated drinks.
Carbonic acid.
300
The earliest form of chemistry was called _______.
Alchemy
300
Solar and wind power would be considered this type of energy.
Mechanical or renewable energy.
400
Fluorine, Chlorine, Bromine, Iodine, and Astatine are in this group.
The Halogen family or group 17
400
The right hand side of a chemical equation.
The products
400
This type of solution would turn litmus paper blue.
A basic solution (pH greater than 7)
400
Names for elements comes from the English or __________ name.
Latin
400
This energy is directly related to motion.
What is kinetic energy.
500
Groups 3 through 12 are also known as this.
The transition metals
500
A change in temperature or a change in color would be used for this.
Evidence that a chemical reaction occurred
500
Identify this chemical reaction:
HCl + NaOH → HOH + NaCl
A neutralization reaction
500
People first realized that an atom had a proton and an electron in which decade?
1910
500
This type of energy is stored as bonds between elements and compounds. Food and gasoline are a few examples.