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Foundations of Chemistry.
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Foundations of Chemistry.
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Foundations of ChemistryDescribe mass. - ANS-the amount of matter in an object
Describe the arrangement of particles in a gas. - ANS-separated, far apart
Describe the arrangement of particles in a liquid. - ANS-close together
Describe the arrangement of particles in a solid. - ANS-tightly packed together
Describe the motion of particles in a gas. - ANS-able to move freely
Describe the motion of particles in a liquid. - ANS-able to slide past one another
Describe the motion of particles in a solid. - ANS-just able to vibrate
Describe volume. - ANS-the amount of space something takes up
Describe weight. - ANS-the pull of gravity on an object
Elements and compounds are examples of _____. - ANS-substances
How are atoms related to elements? - ANS-Elements consist of just one type of atom
How are elements related to compounds? - ANS-Compounds are made of 2 or more
types of elements chemically bonded together
Identify 3 signs of a chemical change. - ANS-formation of bubbles, change in energy
(temperature), change in color, change in odor
In a physical change, what does NOT change? - ANS-the identity of the substance
In a solution, what do you call the matter that you have less of? - ANS-solute
In a solution, what do you call the matter that you have to most of? - ANS-solvent
List 2 examples of chemical properties. - ANS-ability to burn, ability to rust, ability to rot
(decompose), reactivity with water, reactivity with oxygen
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