Transfer of energy
What is radiation?
The transfer of heat energy through space
What is density?
Measure of mass per unit in volume
What is an element?
A pure substance
What is a product?
The new substance formed in a chemical reaction
What is light energy?
bright/Radiant electromagnetic waves
What is it called when heat is transferred from one substance to another?
conduction
What is a streak test?
To find out the color of a mineral
A solid element’s particles are...
Compact/close together
What is a reactant?
A substance that starts in a chemical reaction
What is Electrical energy?
Electron movement between atoms
What is a dangerous form of electromagnetic radiation?
Gamma radiation
Does a material expand or contract when heated?
expand
What is a mixture?
When elements or compounds are present without being chemically bonded together.
What is on the left side of a chemical equation?
reactant
What is mechanical energy?
The motion or position of something.
What kind of energy transfer is it when you boil a liquid?
convection
What is it called when a property can be observed without changing the composition of the substance?
Physical property
What two elements are water (H₂O) molecules made up of?
2 hydrogen 1 oxygen
What does a subscript represent in a chemical formula?
Represents the number of atoms in the formula
What is sound energy?
Vibrations traveling through matter
What color do we interpret when we see all the different frequencies at once?
white
Freezing point is when a liquid becomes...
solid
What two elements are sodium chloride made up of? :)
1 sodium 1 chloride
What are the coefficients in a chemical reaction?
Represents how many particles of that substance are present
What is chemical energy?
Energy stored in bonds of chemical compounds