1. Matter LT 4. Physical Properties LT 4. Chemical Properties
LT 6. Classify matter

2. Physical & Chemical Properties
Physical Properties are defined as...
Properties that do not change the chemical nature of matter
Chemical Properties are defined as...
Chemical Properties are properties that change the chemical nature of matter

3. Physical & Chemical Properties
Name the following as being physical or chemical properties
1. the color of NaOH is white
2. hydrogen gas is flammable
3. magnesium is reactive in hydrochloric acid
4. the density of aluminum 2.70 g/mL
5. methane is combustible in oxygen gas
6. the melting point of lauric acid is 43.2 Celsius
7. pure gold is very malleable

4. Physical & Chemical Properties
Name the following as being physical or chemical properties
1. Physical Property
2. Chemical Property
3. Chemical Property
4. Physical Property
5. Chemical Property
6. Physical Property
7. Physical Property

5. Classifying Matter

6. Classifying Matter Classify the following substances: 1. NaOH 2. Mg
3. HCl
4. S
5. CH4
6. NaCl
7. Si
8. Cu2O

7. Classifying Matter Classify the following substances:
1. NaOH; pure, compound, inorganic, base
2. Mg; pure, element, metal
3. HCl; pure, compound, inorganic, acid
4. S; pure, element, nonmetal
5. CH4; pure, compound, organic
6. NaCl; pure, compound, inorganic, salt
7. Si; pure, element, metalloid
8. Cu2O; pure, compound, inorganic, salt

8. LT 9. Components of elements LT 10. Components of ion
Atom
LT 9. Components of elements
LT 10. Components of ion

9. Atom components Cadmium 114 76 116 35 36 80 42 74.92 Element Name
Complete symbol
Atomic #
# of Protons
# of Neutrons
# of Electrons
Mass #
Atomic Mass
Cadmium
114 76
116 35 36 80 42
74.92

10. Atom components Cadmium -114 48 66 114 112.41 Osmium-188 76 112 188
Element Name
Complete symbol
Atomic #
# of Protons
# of Neutrons
# of Electrons
Mass #
Atomic Mass
Cadmium -114 48 66
114
112.41
Osmium-188 76
112
188
190.23
Bromine-80 35 45 36 80
79.90
Arsenic- 75 33 42 75
74.92

11. Calculating average atomic mass
LT 11. Calculate average atomic mass

12. Calculating average atomic mass
The element boron consists of two isotopes; Boron-10 and Boron-11. The abundance of Boron-10 is only 20%. What is the average atomic mass of Boron?

13. Calculating average atomic mass
The atomic mass of magnesium, from the periodic table, is amu. Magnesium has three isotopes; isotope #1 has an abundance of 78.99%, isotope #2, with a mass number of 25 has an abundance of 10.00%, and isotope #3, with a mass number of 26 has an abundance of 11.01%. What is the mass number of isotope #1?

14. LT 12. use factor label method to count by mass
Counting by Mass
LT 12. use factor label method to count by mass

15. Counting by Mass
How many moles of Iron are contained in 105 g?

16. Counting by Mass
If a beaker contains 9.25 x 1025 atoms of Sc, how many moles would be in the beaker?

17. Counting by Mass
A student placed 61.5 g of Antimony on the scale in the lab. How many atoms of Antimony are sitting on the scale?

18. Counting by Mass If it was determined that a student placed
8.04 x 1021 atoms of Zirconium. If this student placed the Zirconium on the scale, how much would it weigh in grams?