Quiz 1 Matter and Change
One gram of glass will rise 20 degrees Celsius when ____ calories of heat are applied.
3.2
Ten grams of ice will require ___ calories to raise it's temp. 1 degree Celcius
5
How much heat (in calories) must be applied to a 100mL beaker filled with water in order to vaporize the water (H2O)?
5.4 x 10^4 (<----ten to the fourth power)
When one nucleus after another is split _____
A chain reaction begins
Oxidation
A reaction between a substance and oxygen
The beta rays emitted from atomic nuclei are ____
An electron
Evaporation
Change from liquid to gas state
A change involving whole atoms is called ____
Chemical
What type of change is a striking match?
Chemical
What type of change is baking a cake?
Chemical
What type of change is making water from H2 and O2?
Chemical
The change of phase from vapor to liquid is called ____ .
Condensation
Density also known as (D) is defined by mass divided by volume. Which item decreases as heat is applied?
Density
A chemical reaction that takes in heat is called...
Endothermic
During fission, a small amount of mass is changed to ____
Energy
T/F: A chemical change occurs when a substance changes phase.
False
The process of a neutron splitting a nucleus in two parts is called ____
Fission
Atomic bomb
Fuse for hydrogen bomb
Most of the energy that is released by nuclear fission is the form of which rays?
Gamma
Thermo-
Heat
0 degrees Celcius
Melting point of water
Plasma phase
Nuclei and free electrons
Fusion
Nuclei unite
Nuclear
Pertaining to the nucleus of an atom
A change in size or shape of a substance is a ____ change.
Physical
What type of change is melting ice?
Physical
An alpha particle is made up of ____ and ____
Protons and neutrons
Gamma rays
Radiation
Particles or energy given off in a nuclear reaction are called____
Radiation
Burning
Rapid oxidation
Hydrogen
Raw material for fusion
Rusting
Slow oxidation
Fission
Splitting
Reactants
The combining substances in a reaction
Fusion
To fuse or join together
T/F: The Law of Conservation of Matter describes how mass is not lost during a chemical reaction.....
True
T/F: The Law of Conservation of Matter is a basic principle in studying chemical reactions....
True
What is true about a chemical equation?
You can count the number of molecules You can count the number of atoms