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Biology Lessons 2.1 and 2.2 Vocabulary

Across
One end is postitive, the other is negative
Attraction between molecules of different substances
Attaction between molecules of the same substance
Measure of a substances acidity or alkalinity
7.5 - 14 on pH scale
0 - 6.5 on pH scale
Water mixed with non-dissolved materials
What something is being dissolved in
Mixture where all components are evenly distributed
A pure substance with only one type of atom
Two or more elements chemically combined
Down
What is being dissolved in a mixture
Postively or negatively charged atoms
Bond where one or more electrons is transferred from one atom to another
Smallest unit of most compounds
Bonds found in water molecules
Where the protons and neutrons reside
Negatively charged particle that orbits the nucleus
2 or more elements or compounds physically (not chemically) combined
Bond where electrons are shared between atoms
Postitively charged part of an atom
The building blocks of matter