Show:
Dealing with Electrons
Compounds
Mixtures
Physical vs. Chemical
Extra Vocabulary
100
1. When two or more elements join together chemically this is formed.
What is a Compound?
100
6. True or False? When atoms are chemically bonded in a compound, they loose their individual characteristics.
What is true?
100
11. A mixture that has particles that can be seen easily and can be separated by settling is this.
What is a suspension?
100
16. Of the following what is not a chemical change? Burning a candle, baking cookies, dissolving sugar in water.
What is dissolving sugar in water?
100
21. What is a solute? Give three examples.
What is something that is dissolved by a solvent. Sugar, oxygen, salt.
200
2. Families in the periodic table have similar characteristics based on these.
What are valence electrons.
200
7. What pure substance is formed when two elements chemically combine?
What is a compound?
200
12.This type of mixture is made up of a solute and a solvent.
What is a solution.
200
17. Is measuring the temperature at which something boils a physical property or chemical property.
What is physical, because it will be the same temperature every time for that substance.
200
22. This is how we define concentration.
What is the amount of one material in the volume of another.
300
3.This is how polar bonds are described.
What is a covalent bond, where electrons are shared unequally?
300
8. True or false? Solids and gases can form compounds, but they cannot form mixtures.
What is false.
300
13. A mixture that has particles that do not settle out is one of these.
What is a colloid?
300
18. Mixtures can be separated by these methods.
What is filtering, evaporation, sorting...
300
23. This states that matter is not created or destroyed in either a chemical or physical change.
What is the law of conservation of mass?
400
4. This is the number of electrons that are shared when a double bond is formed.
What is four or two pair?
400
9. True or False? Compounds and mixtures are commonly found in nature.
What is true.
400
14.A solution that has as much dissolved solute as possible at a certain temperature is called this.
What is a saturated solution?
400
19. In order to break down a compound you have to break these first.
What is a chemical bond, you can do this through a chemical reaction, adding enough heat and electricity.
400
24. What is solubility, and how do you increase it?
What is the ability for a solvent to dissolve solute, you increase it by adding heat or stirring.
500
5. This is how covalent bonds differ from ionic bonds.
What is in covalent bond electrons are shared, in ionic bonds oppositely charged ions are attracted to one another.
500
10. The smallest particle of a compound that still has the characteristics of that compound is one of these.
What is a molecule.
500
20. How do you determine if a change is physical or chemical?
In a chemical change, what you get out is not the same as what you put in. In a physical change, what you get out is the same as what you put in, even if the parts are in a different phase.