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science vocab.

The law stating that in a chemical reaction, matter is neither gained nor lost. laws of conservation of mass
phase change: a change from one state (solid or liquid or gas) to another without a change in chemical composition. physical change
chemical process: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved chemical change
A part or aspect of something, esp. one that is essential or characteristic. element
a representation of a substance using symbols for its constituent elements. chemical formula
A molecule that contains two atoms. element diatomic molecule
a compound made of 2 or more nonmetal elements compound molecule
A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction chemical reation
substances that go through a chemical change reactants ( in a chemical equation )
A chemical equation is symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and the product entities on the right hand side. chemical equation
Hold liquids and for ballpark estimates beaker
magnifies microsopic objects microscope
to measure the length of objects rule
used to pick up and hold test tube for short periods for heating test tube holder
accurate measurements of volume graduted cylinder
a push or pull, has a size and direction force
an object at rest stays at rest an object moving stays moving until stopped by an oppiste force newton's 1st law
the rate of change of momentum is proportional to the imposed force and goes in the direction of the force newton's 2nd law
the distance traveled divided by the time needed to travel that distance speed
the act or an instance od directing direction
Created by: s0200902