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C2 Science

QuestionAnswer
Vocab - anything that has mass and takes up space Matter
Vocab - a substance that cannot be separated or broken down into simpler substances by chemical means Element
Vocab - the smallest unit of an element that maintains the chemical properties of that element Atom
Vocab - a group of atoms that are held together by chemical forces; is the smallest unit of matter that can exist by itself and retain all of substances chemical properties Molecule
Vocab - a substance made up of atoms of two or more different elements joined by chemical bonds Compound
Vocab - a sample of matter, either a single element or a single compound, that has chemical and physical properties Pure Substance
Vocab - a combination of two or more substances that are not chemically combined Mixture
Vocab - temperature and pressure at which a solid becomes a liquid Melting Point
Vocab - temperature and pressure at which a liquid becomes a gas Boiling Point
Vocab - the ratio of the mass of a substance to the volume of the substance Reactivity
Vocab - change of matter from one form to another without a change in chemical properties Physical Changes
Vocab - a change that occurs when one or more substances change into entirely new substances with different properties Chemical Changes
a material that can be represented by a chemical formula is Pure Substance
what is NOT a potential sign of chemical change evaporation of water
smallest unit of an element that maintains the properties of that elements is a(n) atom
D = d = m/v
M = m = d x v
V = v = m/d
what property of a substance is NOT affected by physical change Reactivity
A chemical change forms when a new substance is formed
chemical changes can effect physical and chemical properties whereas physical changes can affect physical properties
which of the following is made up of at least two different types of atoms Compound
unlike a mixture.. a pure substance has a fixed composition
digesting food is a ----- change chemical
science of what matter is made of and how it changes is.... chemistry
a substance that cannot be broken down into simpler substances is--- element
Sound is not made of matter because it has no ----- mass or volume
Flammability is a chemical property that tell whether a substance reacts in the presence of --- oxygen
Copper is used to make electric wire because it is a good---- conductor
Two or more liquids that can dissolve into each other are referred to as --- miscible
smallest particle of oxygen that behaves like oxygen is an oxygen--- atom
Created by: gbradford12
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