Show:
Mixtures
SOL...
Periodic Table Review
Compounds
Misc.
100
1) A mixture in which particles can be seen and easily separated by settling or filtration.
What is a suspension?
100
6) A substance that dissolves in a solvent.
What is a solute?
100
11) The maximum number of valence electrons an atom can have.
What is 8?
100
16) When two are more elements are chemically bonded this happens.
What is a compound is formed?
100
21) Compounds can be broken down this way, elements cannot.
What is chemically?
200
2) A mixture in which different parts can be easily distinguished.
What is a heterogeneous mixture?
200
7) A substance in which a solute dissolves.
What is a solvent?
200
12) When an atom loses an electron it is called this.
What is a positive ion?
200
17) Of the following only this will NOT break down a compound: heat, electricity, chemical change or filtering.
What is filtering?
200
22) This pure substance forms when two elements chemically combine.
What is a compound?
300
3) A mixture in which different materials are blended evenly so that the mixture is the same throughout.
What is a homogeneous mixture?
300
8) This is one way to increase the solubility of sugar in water.
What is add heat?
300
13) This group does not react easily with any other atoms.
What are the noble gasses?
300
18) The chemical bond formed when valence electrons are shared.
What is a covalent bond?
300
23) Molecules which are a little negative on one side, and a little positive on another are called this.
What is a polar molecule?
400
4) A mixture containing small, undissolved particles that do not settle out.
What is a colloid?
400
9) When you add so much solute that it no longer dissolves in a solvent.
What is a saturated solution?
400
14) Of the following this is the only chemical property: density, boiling point, color, or reactivity with acid.
What is reactivity with acid?
400
19) The bond created between oppositely charged atoms.
What is an ionic bond?
400
24) This is the reason why sodium (Na) isn't explosive or chlorine (Cl) poisonous when they are found in table salt (NaCl).
What is the individual atoms lose their original properties when a chemical bond is formed.?
500
5) The amount of one material in a certain volume of another material.
What is the concentration?
500
10) *Daily Double* This is generally how a solute differs from the solvent in a solution.
The solute is in a smaller amount than the solvent.
500
15) The properties of each family group of the periodic table is determined by this.
What is the number of valence electrons?
500
20) When two pairs of electrons are shared between two atoms.
What is a double bond?
500
25) These are the steps to separate out the following mixture: Mixture XY, Chemical X is soluble in water and alcohol. Chemical Y is soluble in water, but insoluble in alcohol.
What is: 1) add alcohol to mixture. 2) stir mixture to make sure chemical X dissolves. 3) filter the mixture to remove chemical Y. 4) evaporate the alcohol from chemical X. Chemical X and Y are now separated.