vocab 1
a substance that contains one type of atom and cannot be broken down into a simpler substance.
what is an element
a force that draws two objects together
what is attraction
A substance made of two or more different elements that are bonded together
what is a compound
a substance that starts a chemical reaction
what is reactant
Particles that make up matter
what are atoms
a mixture that is blended together and that looks the same
a mixture in which components are not uniform and where different samples from the mixture are not identical to each other
what is a heterogeneous mixture
this never changes, no matter how the parts are rearranged in a chemical reaction
what is the mass
Compounds that are slippery, have a bitter taste, and are caustic
What are bases
When a new substance is formed
what is chemical reaction
a compounds that have sour taste and can dissolve some metals.
what is an acid
using chemical symbols and numbers to describe what happens in a chemical reaction.
Daily double
what is chemical equation
is a substance has a pH of 7 it is considered
what is a neutral
When acids and bases break down substances
what is corrosive
when physical properties of an object change, but no new substance is formed
what is physical change
the tendency of molecules to stick to other molecules of the same type
Daily double
What is cohesion
the state that matter cannot be created or destroyed during chemical reactions.
what is the law of conservation of mass
something that looks the same everywhere in appearance.
Daily double
what is uniform
to result in
What is to yield
cohesion, attraction, adhesion, and surface tension
what are the properties of water
making the surface of the water behave like a thin, elastic film
liquid flowing against the force of gravity
what is capillary action
scale used to measure the acidity of something
what is pH scale
a substance produced during a chemical reaction
what is product
4O3H5K3
How many oxygen are present
what are 12