The study of matter and the changes that occur to matter.
100
Convert 20degrees C to K
293 degrees K
100
Anything with mass or volume.
What is matter
100
Define Energy and Heat
Ability to do work, and the flow of energy due to a difference in temp. between the 2 areas.
100
The first letter of the element symbol is ___.
What is capital
200
Define Control and Independent Variable
Part of the experiment that is not changed; the factor being changed.
200
What are the units of density
g/ml or g/cm cubed
200
Elements cannot be what?
broken down into simpler substances.
200
Ice is ___ dense than water
What is less
200
How is the number of each atom represented in a chemical formula
Subscript
300
What is the difference between Qualitative and Quantitative observations
non numeric; numeric.
300
What are the standard units of measurement
Kilogram, Meter, Liter, Second, Kelvin
300
What is the difference between Physical and Chemical Properties
Characteristics of substance determined w/ out forming a chemically new substance, as opposed to the characteristics of a substance refer to substances ability to make new elements.
300
Formula for state of matter changes.
What is Q = S * M * (delta)T
300
Who discovered the electron?
JJ Thompson
400
Define Scientific Notation
Method of expressing very large or very small numbers in a more compact manner.
400
Convert 3240mg to g
3.24g
400
True or False, Mixtures have a variable composition, and different samples will contain the same amounts of each substance.
False Different samples contain different amounts
400
The 4 most abundant elements on earth
What are Oxygen 49.2%, Silicon 25.7%, Iron 4.71%, Calcium 3.39%
400
Relative mass and charge of Electron, Proton, and Neutron
What is electron: 1, -1
proton: 1836, +1
neutron: 1839, 0
500
Used to tell what standard is being used to determine measurement.
What is a unit
500
T or F the correct Sig Fig is used 100.5
35.45
+ 3.687
=========
139.637
False 139.6
500
Mixtures can be separated into what?
Pure Substances
500
How much energy is required to raise 7.40g of water from 29degC to 46degC
530Joules
500
3 of 5 parts of Dalton's Atomic Theory
1. elements are made of atoms
2. atoms of given elements are identical
3. atoms of different elements are different
4. Atoms can combine to form compounds
5. Atoms Cannot be created or destroyed