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chemistry25

QuestionAnswer
calorie the quantity of heat needed to raise the temperature of 1g of pure water
boiling point the temperature at which the vaper pressure of a liquid is just equal to the external pressure on the liquid
base a compound that produces hydroxide ions in solutions
barometer an instrument used to measure atmospheric pressure
density the ratio of the mass of an object to its volume
covalent bond atoms are held together by sharing electrons
conductor something that allows electricity to travel through it to complete a circuit
condensation gas to liquid
concentration a measurement of the amount solute that is dissolved in a given quantity of solvent
compound a substance that contains two or more elememts chemically combined in a fixed porportion
catalyst a substance that increases the rate of reaction by lowering the activation-energy barrier
carcinogen anything that causes cancer
cell the smalest unit of an organism with a nucleus
control the constant
charge positive or negative
chlorophyll the green color fond in plant cells
Created by: sarahbeth2014
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