a change in a substance that does not involve a change in the identity of the substance
what is physical change
THE PROCESS BY WHICH ONE OR MORE SUBSTANCES Change to produce one or more different substances
what is a chemical reaction
A PLACE OR OBJECT USED FOR COMPARISON TO DETERMINE IF SOMETHING IS IN MOTION
WHAT IS A REFERENCE POINT
a solid that forms from a solution during a chemical reaction
what is a precipitate
the number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction
coefficient
THAT RATE AT WHICH AN OBJECT IS MOVING AT A GIVEN INSTANT IN TIME
WHAT IS INSTANTANEOUS SPEED
a substance produced in a chemical reaction
what is a product
a measurement of how much solute exists within a certain volume of solvent
what is concentration
THE DISTANCE AN OBJECT TRAVELS PER UNIT OF TIME
WHAT IS SPEED
a chemical substance that is present at the start of a chemical reaction
protein that acts as a biological catalyst
what is an enzyme
SPEED IN A GIVEN DIRECTION
WHAT IS VELOCITY
a substance that slows down or stops a chemical reaction
what in an inhibitor
SYSTEM OF MEASUREMENT SCIENTISTS USE
WHAT IS THE INTERNATIONAL SYSTEM OF UNITS