1. Formation of a Gas
2. Formation of a Precipitant
3. Color change
4. Temperature Change

1. Organic
2. Inorganic
3. Physical
4. Biochemisty
5. Analytical
6. Theoretical

1. Mass
2. Volume
3. Length

Quantitative

 (Quantity=Numbers)

Qualitative

(quality)

1. Extensive
2. Intensive

1. M.P
2. B.P
3. Density
4. Color
5. Malleability

• Cutting Wire
• Grinding a Solid
• Any Changes of State                      (melting, being solluble, etc.)

Matter
YES  (can it be separated?)  NO

                      Mixture                                                       "Pure Substances"     

 Homogeneous    Heterogeneous     Elements Compounds            

1. NaCl    1.Blood                1.Fe                1.H2O

 2. Mayonaise   2.Granite                        2. Oxygen      2.Glucose                           

Which are chemical changes and which are physical?

1. Iron rusting

2. Water evaporating

3.Paper burning

4. Wood being cut

5. Food digesting

1. Chemical

2. Physical

3. Chemical

4. Physical

5. Chemical

1. Wood burning
2. Iron Rusting
3. Food Digesting

(If you can't come back it's chemical)

Properties that are observed and measured without altering the identity of the substance. They are unique to the substance.

 (Quantitative and Qualitative)

Accuracy= Getting the true value

Precision= Getting a measurement over and over again.

 (Reproduceability)

Two are the Alkaline Earth Metals

Seventeen are the Halogens

• Metals are to the left of the line
• Nonmetals are to the right
• Metalloids are straddling the line

• Good conductors of Electricity and Heat
• Ductile
• Malleable
• Solid at room temp.
• Shiny
• High melting/boiling point

One is Alkali Metals

Eighteen is Noble Gases

18!

(Elements in them share characteristics)

Mass % = Mass of component divided by total mass of mixture x 100%

( Actual - experimental/ actual) x 100

experimental is what you got

Mass/ Volume  

(Grams/mL or cm3)

Sp. Heat= heat enery (calories/joules)

(Mass of substance) x (Change in Temp)

Calories and Joules

(4.18 Joules = 1 calorie)

1. All non zero digits are significant (355=3)
2. Zeroes between Non-zeroes ARE significant (4006= 4)
3. Zeroes that are in front of a number ARE NOT sig (.001= 1)
4. Zeroes at the end of the number after the decimal ARE sig (567.00=5)
5. Zeroes at the end of the number left of decimal may be or may not be sig. (2000= 1,  however 2000. = 4)

What is..

1. The formula for converting F to C
2. C to F
3. C to K

1. F to C=  5/9 (F-32)

2. C to F= 9/5 x C + 32

3. C to K= C + 273

See how many places they both go out, answer can't be more than the least amount of decimals.

Ex. 25.1 + 2.03   Answer can only have 1 decimal place

Percent yield is the mass of the material recovered after separation

%yield= actual yield/theoretical yield x 100%

See how many sig figs are in each

ex. 3.05/ 8.47

answer must have 3

(if one has 4 and other has 3, answer can have 3)