substance that occurs before the chemical reaction is called
reactant
100
the material that passes through a wave is called
medium
100
the movement of electron is called____________.
Electricity
100
The smallest particle of matter is called ___________.
Atom
100
What is science?
A system of knowledge based on facts and principles
200
the substance occur after a chemical reaction is called
product
200
the top part of a wave
crest
200
material that allows electron to move freely are called _______________
conductor
200
What the three subatomic particles of matter
Solid, Liquid and gas
200
What three main branches of science
Biology Physical science and Earth Science
300
What is the first step in balancing an equation
constructing a rap table
300
The bottom part of a wave
Trough
300
material that holds tightly to its electrons are called __-
insulator
300
A group of elements organized on a chart in row and columns are called ___________________.
Periodic Table
300
What are the branches in physical Science?
Physics and Chemistry
400
What is the abbreviation of Rap
reactant atom product
400
the maximum displacement of a wave from its equilibrium point.
amplitude
400
Materials that acts as a conductor during special circumstances are called ____________
semiconductor
400
What is the electron trend within a period?
The elements in a period have the same valence shell
400
What is the difference between qualitative and quantitative
Qualitative deals with letter
Quantitative deals with numbers
500
How many electrons can hold in the second level
8 electrons
500
what is the formula for the speed of a wave?
Frequency x wavelength
500
Like charges repel, while opposite charges attract and that the closer together the charges are, the stronger the force is supported by _________________.
Coulomb's Law
500
What is the electron trend within a group?
The elements in a period have the same number of Valence electrons