vocab
what is a molecule.
a group of 2 or more atoms held together by chemical bonds
gas to liquid
condensation
atoms come together to
create pure single elements
what is matter
Anything that has mass and takes up space
what is a product
A substance formed after chemical reaction takes place
what is a compound
a compound is a substance made of 2 or more elements that are chemically combined
liquid to gas
evaporation
Elements then bond together to
form molecules and compounds
what is Mass
The amount of matter in an object
what is to Conserve/Conservation
To keep the same amount; to prevent loss
all compounds are molecules but..
not all molecules are compounds
1. liquid
2. Gas
what is a subscript
the smaller number to the right, tells us the amount of atoms in an element
what is a chemical reaction
A process in which substances (reactants) change into new substances (products) with different properties.
Together subscripts and coefficients what
work together to tell us the total atoms in the entire chemical formula.
liquid to solid is
freezing
Matter can what
matter can change
what is a coefficient
bigger number to the left, tells us the amount of molecules
what is Chemical Formula
a way to represent a substance using symbols and numbers.
what is the difference between an atom, an element, a molecule, and a compound?
atoms is the smallest subatomic particles. atoms make up elements. Elements make up both molecules and compounds. molecules and compounds are different because molecules are both the same and different and compounds are different elements.
solid to liquid is
melting
atoms are
the simplest form of matter
if a element has no subscript it is
the number 1
what is Reactant
A substance that starts a chemical reaction.
***DOUBLE POINTS*****
can mass be created or destroyed
no it cant because of the law of conservation