Name: __________________________________________________________Period: _______________ Date: ____________
1.
7.
What branch of chemistry is concerned with the theories and experiments that describe chemical behavior?
________________________________________
What branch of chemistry studies all substances that contain carbon? _____________________
What branch of chemistry studies processes that take place within living organisms? ____________________________
What branch of chemistry studies the composition of substances? ________________________
What branch of chemistry studies substances that do not contain carbon? ________________
Complete the table:
Compound
Organic or Inorganic?
KI
NaOH
C6H12O6
NaOCl
C5H10
CH4
BaCl2
What is a hypothesis?
8.
Compare and contrast elements and compounds. Give an example of each.
9.
10.
11.
12.
13.
14.
15.
The state of matter in which all particles are packed closely together while vibrating in place: ____________________
The state of matter that has a definite shape and a definite volume: ______________
The state of matter in which the particles are spread out and move rapidly: _____________
The state of matter in which the particles slide past another: ____________
The state of matter that is characterized by a definite volume and indefinite shape is: _____________________
The state of matter that is characterized by an indefinite shape and an indefinite volume is: ____________________
Compare and contrast chemical and physical changes.
2.
3.
4.
5.
6.
16. What the 4 signs of a chemical change?
17. Circle the physical changes below
Leaves change color in the fall
Water evaporates
Glass breaks
Milk spoils
Ring turns your finger green
Zinc bubbles when it is added to HCl
18. Read the ruler to the nearest centimeter:
19. Determine the density of an unknown liquid that has a mass of 101.9grams and a volume of 27.3 mL.
20. Determine the mass of a sample of zinc whose density is 7.113 g/cm3 and whose volume is 45.3 cm3.
21. Determine the volume of a sample of aluminum whose density is 2.70 g/cm3 and whose mass is 32.9 g.
22. Convert 6.7 kg to grams.
23. Convert 6.7 mL to cL.
24. Convert 0.6 m to hm.
25. Convert 4500 cs to second.
26.
27.
28.
29.
30.
31.
32.
33.
34.
_______________ and __________________ are located in the nucleus; _________________ surround the nucleus.
_______________ discovered the electron in the cathode ray experiment.
Rutherford discovered the ___________________ in the gold-foil experiment.
Rutherford concluded that the _______________ makes up most of the mass of the atom.
______________ proposed the idea that everything is made up of small particles and coined the term “the atom.
Thompson’s model of the atom is called ___________________________________ model.
Bohr stated that electrons move in ____________________________________.
____________________________________ model of the atom is the accepted model of the atom today.
Complete the table below:
Particle
What is the Charge?
Protons
Electrons
Neutrons
35. Complete the table below:
Element
Atomic Number
Atomic Mass
13
Number
of protons
Number
of electrons
Number of neutrons
74
Fe
O
15.999
36. Draw the Bohr Diagram for the following elements:
Fluorine
Gallium
Sulfur
37. ___________________ are atoms of the same element with the same atomic number but have a different number of neutrons.
Therefore, the atomic mass of these atoms varies.
38. Calculate the average atomic mass for Boron. Show all of your work.
Isotope
1
2
Mass
10.013
11.009
39. Calculate the average atomic mass for Silicon. Show all of your work.
Isotope
Mass
1
27.98
2
28.98
3
29.97
Relative Abundance
19.90%
80.10%
Relative Abundance
92%
5%
3%