ChemCom MP1 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
What are two or more substances physically combined called? | mixture |
kilo- | 1000 x basic unit |
hecto | 100 x basic unit |
solid | the state of matter that has the lowest energy |
solid | the phase in which atoms are closely packed together and can only vibrate |
liquid | the state of matter that has a definite volume but an indefinite shape |
liquid | the phase in which atoms and molecules can move freely in two dimensions |
gas | the phase in which atoms and molecules are far apart and move freely in 3-D |
gas | the state of matter that has both an indefinite shape and volume |
plasma | the state of matter with the highest energy |
plasma | the state in which most of the matter in the universe can be found |
gas | the state of matter that is common on earth and can be compressed easily |
surface tension | the attraction among particles in liquids |
freezing | the change of state from a liquid to a solid |
freezing point | the temperature at which a liquid changes to a solid |
melting | the change of state from a solid to a liquid |
melting point | the temperature at which a solid changes to a liquid |
vaporization | includes both boiling and evaporation |
boiling | the change from a liquid to a gas that occurs throughout the liquid |
evaporation | a change from liquid to gas; it occurs only on the liquid's surface |
boiling point | the temperature at which a liquid changes to a gas |
condensation | the change from a gas to a liquid |
compound | two or more elements chemically combined in a definite proportion |
mixture | Two or more substances that are physically combined |
physical change | methods used to separate mixtures |
homogeneous mixture | A mixture that appears the same throughout |
heterogeneous mixture | A mixture in which separate substances can be seen |
solution | a homogeneous mixture that appears to have one state of matter |
suspension | a heterogeneous mixture in which particles settle out by themselves |
colloid | A homogeneous mixture that is usually white and opaque; does not settle |
physical properties | Characteristics observed without changing the substance |
chemical properties | characteristics of how substances react with one another chemical properties |
changes of state | are ALL physical changes |
mixtures | substances physically combined in no definite proportion |
compound | two or more elements chemically combined |
element | contains atoms of only one type; these are found on the periodic table |
atom | the smallest piece of an element with all the properties of that element |
molecule | smallest piece of a compound with all the properties of that compound |
chemical symbol | the shorthand way scientists write an element's name |
chemical formula | The shorthand way scientists write a compound |
chemical formula | Tells what elements and how many atoms of each are in a compound |
reactants | The substances that come together to react in a chemical reaction |
products | The new substances that are formed in a chemical reaction |
reactants | These are shown to the left of the arrow in a chemical equation |
products | These are shown to the right of the arrow in a chemical equation |
atoms | are made of protons, neutrons and electrons |
proton | the massive, positively charged particle in the nucleus of an atom |
neutron | the massive uncharged particle that is found in the nucleus of an atom |
electron | negatively charged particle with little mass found outside the nucleus |
filtration | method used in the foul water lab that removed large solid particles |
saturated solution | solution that has the maximum amount of solute possible |
unsaturated solution | solution with less than the maximum amount of solute |
supersaturated solution | A solution with more than the maximum amount of solute |
ions | Charged atoms;they have different numbers of protons and electrons |
acids | substances that contain an excess of H+ ions |
bases | substances that contain an excess of OH- ions |
acids | pH less than 7 |
bases | pH more than 7 |
pH | a measure of the concentration of H+ ions |
Created by:
phuddles
Popular Chemistry sets