Show:
States of Matter
Balancing Equations
Atomic Properties
Chemical and Physical Changes
The Periodic Table
100
This state of matter has a definite shape and volume.
What is a solid
100

___H2 + O2 -> H2O

2H2 + 1O2 -> 2H2O

100
The subatomic particles (the parts of an atom.)
What are protons, neutrons, and electrons.
100
In this reaction, a solid becomes a liquid when heat energy is added. (Chemical or Physical)
What is a physical reaction.
100
What is the chemical name for symbol Ni?
What is Nickel
200
This state of matter has no shape or volume.
What is a gas
200

__N2 + ___H2 -> __NH3

1N2 + 3H2 -> 2NH3

200
The inner part of an atom, composed of protons and neutrons.
What is the nucleus.
200
In this reaction, a substance changes color and a burning smell is released. (Chem or Phys)
What is a chemical reaction.
200
The atomic number of Carbon.
What is 6?
300
This is the phase change that occurs when a liquid becomes a solid.
What is freezing
300

__S3 + __O2 -> ___SO3

2S3 + 9O2 -> 6SO3

300
The charge of an electron.
What is negative.
300
In this reaction, there is a temperature decrease and a gas is produced. (Chem or Phys)
What is a chemical reaction.
300
The number of protons in Calcium.
What is 20?
400
This is the state of matter in which molecules are the most dense.
What is a solid.
400

___N2 + __O2 -> ___N2O

4N2 + 2O2 -> 4N2O

400
The charge of a neutron.
What is no charge or neutral.
400
List at least 4 indicators of a chemical change.
What are color change, gas is produced, smell is produced, the reaction is irreversible, temperature change (without cooling or heating,) electrical energy is produced.
400
The atomic weight of Lithium to the nearest hundredth.
What is 6.94?
500
List the 3 states of matter in order from the lowest to the highest energy level.
What is solid, liquid, gas, (and plasmsa)
500

___HgO -> __Hg + __O2

2HgO -> 2Hg + O2

500
Atoms share these when they bond.
What are electrons?
500
In a chemical reaction, CaOH (calcium hydroxide) and CO2 (carbon dioxide) are _________, CaCO4 (chalk) and H20 (water) are __________. (products, reactants)
What are reactants and products
500
The valence (or electrons available for bonding) in Oxygen.
What is 6?