Term
|
Definition
| A transformation involving the rearrangement of atoms to form new substances (the chemical composition or identity is changed) |
|
|
Term
|
Definition
a transformation from one state of matter to another with no change in chemical composition
NO new substances formed |
|
|
Term
|
Definition
| Substances before the chemical reaction occurs; on the left of the reaction arrow |
|
|
Term
|
Definition
| Substances formed after a chemical reaction; on the right of the reaction arrow |
|
|
Term
|
Definition
In chemistry, reactants YIELD products
The word is represented with an arrow |
|
|
Term
|
Definition
| Whole number placed in front of a chemical formula |
|
|
Term
|
Definition
| The number to the right of an element’s chemical symbol indicating how many of that atom are present in a formula |
|
|
Term
|
Definition
Smallest unit of an element
From the Greek “atomos” meaning “indivisible” |
|
|
Term
|
Definition
| Group of atoms bonded together |
|
|
Term
|
Definition
Phase of matter with a fixed shape and a fixed volume
Represented in a chemical equation by (s) |
|
|
Term
|
Definition
Phase of matter with a fixed volume but an indefinite shape (takes the shape of its container)
Represented in a chemical equation by (l) |
|
|
Term
|
Definition
Phase of matter with no definite shape and no definite volume
Expands to fill its container
Represented in a chemical equation by (g) |
|
|
Term
|
Definition
Solution where water is the solvent
Dissolved in water
Represented in a chemical equation by (aq) |
|
|
Term
| balanced chemical equation |
|
Definition
Chemical equation which obeys the Law of Conservation of Mass
Chemical equation which has the same atoms in the same numbers on both sides of the reaction arrow |
|
|
Term
| Law of Conservation of Mass |
|
Definition
Conservation comes from the Latin “conservare” meaning “keep” or “preserve”
This law states that “matter (mass) cannot be created or destroyed, only transformed” |
|
|
Term
|
Definition
| Anything that has mass and takes up space |
|
|
Term
|
Definition
Measure of the amount of matter in an object
NOT the same as weight |
|
|
