Warm Up—8/20/13

1. Write down three classroom expectations.

2. What is the grading percentage breakdown this year?

Warm Up—8/21/13

While prying open a samplecontainer, Rachel cut her hand. It was not bleeding badly so shewiped it with a tissue she had inher pocket. Did she followcorrect procedures? Why or why not?

8/22/13

No Warm Up….1. Take out the lab titled “Acid in your Eye” on

the table to the left.2. Turn in your lab safety contract!!!!3. Wait for further instructions.

Warm Up—8/23/13

1. What was the purpose of yesterday’s lab (in your own words)?

2. Is the reaction that occurred with the Hydrochloric Acid and the Egg reversible?

Warm Up—8/26/13

1. What are the 6 branches of chemistry?2. What is an element?3. What is a physical property? Give an

example.

Warm Up—8/27/13

1. What is a chemical property? Give an example.

2. Briefly describe how you would determine the difference between salt and sugar.

Warm Up 8/28/13

1. What is the purpose of the candle lab?2. What is a qualitative observation? Give

an example.3. What is a quantitative observation? Give

an example.

Warm up 8/29/13

1. What are the 4 states of matter?2. Differentiate between exothermic and

endothermic processes.3. What happens when something

undergoes sublimation?

Warm Up 8/30/13

1. What does viscosity describe?2. Which liquid is more viscous: Water,

maple syrup, or vegetable oil?3. Identify two properties of liquids.

Warm Up--9/3/13

1. Differentiate between intensive and extensive properties.

2. What happens during the phase change evaporation?

3. Indicate whether the following are intensive or extensive properties:

1. Density2. Length3. Physical state of matter

Warm Up—9/4/13

1. What do solids and liquids have in common? (refer to venn diagram)

2. Describe one way that indicates a chemical reaction has occurred?

3. What is a mixture?

Warm Up—9/5/13

1. What was separated in the chromatography process?

2. What is a compound?3. Think of a method to separate a salt

water mixture.

Warm Up--9/9/13

1. What is a pure substance? List three.2. Differentiate between a compound and a

mixture.

Warm Up—9/11/13

1. Write down everything that you know about the atom.

2. When you finish #1, clear you desk of everything except for something to write with. (you don’t have to write this down).

Warm Up—9/12/13

1. What is the law of conservation of mass?

2. Differentiate between Dalton’s and Aristotle’s theories of elements/atoms.

Warm Up—9/13/13

1. Draw or describe the Thomson model of the atom.

2. Draw or describe the Rutherford model of the atom.

3. Who discovered the neutron?

Warm Up—9/16/13

1. What is the atomic number for Chlorine (Cl)?

2. If the mass # for an atom of Na is 21, how many neutrons and protons are in that isotope?

3. An oxygen ion has a charge of 2- and a mass number of 15. How many protons, neutrons, and electrons does it have?

Warm Up—9/17/13

1. What is the atomic mass of oxygen according to the Periodic Table of Elements?

2. Calculate the atomic mass of Strontium (Sr) which has 2 isotopes: 89Sr has a 76% abundance and 86Sr is the remaining isotope.

Warm Up 9/18/13

1. Which isotope, M&mium, Skittlium, or Reesium had the largest mass? What does that imply?

2. What was the atomic mass of the element candium?

Warm Up 9/19/13

1. Describe and name Bohr’s model of the atom.

2. Louis De Broglie described an electron as having properties of both_____ and a _____.

Warm Up 9/20/13

1. What is the frequency of a wave?2. What is the speed of light in a vacuum?3. Calculate the wavelength of light with a

frequency of 1.50 x 1013 Hz.

Warm Up—9/23/13

1. What is Planck’s constant (with units)?

2. Light with a wavelength of 5.25 x 10-

12 m has a frequency of what in Hz? Ans: 5.71 x 1019 Hz

3. Calculate the energy of the light wave in question 2. Ans: 3.78 x 10-14 J.

Warm Up--9/24/13

1. The energy for a certain red light equals 2.92 x 10-20 J. What is the wavelength of this light?

2. (You don’t need to write this one down) Think about topics or questions you want to go over regarding the test.

Warm Up—10/2/13

1. What do alpha particles consist of?

2. What is a beta particle?3. What is the charge of gamma

radiation?

Warm Up—10/4/13

1. Complete the nuclear chemical equation for the alpha decay of 208-Polonium.

2. Complete the equation for the beta emission of 131-Iodine.

Warm Up—10/7/13

1. Explain what a half-life is. (hint: think about the lab)

2. In the lab, what did the pennies represent?

3. Complete the following nuclear decay reaction: Carbon-14 decays with beta emission.

10/8/13

FIRST PERIOD: NO WARM UPHAVE MATERIALS READY TO TAKE NOTES.

Warm Up 10/8/13 and 10/10

1. The mass of cobalt-60 is 8.00 grams in a sample. How many grams will remain after 10.5 years if cobalt-60 has a half-life of 5.25 years?

Warm Up—10/15/13

1. What is the atomic number of Phosphorus?

2. What is the atomic mass for Strontium?

Warm Up--10/17/13

1. Identify which group each of the following elements belongs to:

a) Bariumb) Radonc) Irond) Sodium