In The Beginning ...
Chemistry Calculations
Properties & Changes
Substances & Mixtures
So, We Did This Lab ...
100
True or False: Soap and water should be used to wash chemical spills from your body in lab.
False
100
How many significant figures are in the number 0.00300
THREE
100
Which is NOT a physical property? Density, Color, Reactivity to oxygen, Melting Point
Reactivity To O2
100
All matter can be classified into TWO major categories:
Pure Substances and Mixtures
100
Candle Lab: What types of data were you collecting during the lab?
Qualitative and Quantitative
200
John made 3 measurements of 2, 2, and 2. Sam made 3 measurements of 5, 6, and 7. If the true measurement is 6, who was most PRECISE?
John
200
Multiply 3.0 and 2.0 ... use significant figures~
6.0
200
Name an example of a chemical property:
Reaction/reactivity with ...
200
Silver is an example of this:
Element
200
Lighting a smoke bomb is what type of change?
Chemical Change
300
What is the first thing you should do when entering Ms.English's classroom?
Start answering the Warm Up questions
300
DOUBLE JEOPARDY! Convert 0.0050 into scientific notation:
5.0 E-3
300
TRIPLE JEOPARDY: Name an example of an INTENSIVE property
color, density, melting/boiling point, flammability, odor, etc
300
A chocolate shake is an example of this:
Homogeneous Mixture
300
Name a piece of QuaLitative data from the candle lab:
mention color, smell, anything without a number
400
What should you do FIRST if you spill a chemical during the lab?
Tell the teacher IMMEDIATELY !
400
Convert 2000 liters into kiloliters:
2 kL
400
Physical or Chemical Change? Mixing vinegar and baking soda produces bubbles.
Chemical Change
400
Sodium Chloride is an example of this:
Compound
400
TRIPLE JEOPARDY: If an object has a mass of 5 g and volume of 5 mL, which is it: Copper (9 g/mL), Water (1 g/mL), Carbon (5 g/mL)
WATER
500
Double Jeopardy! Name a piece of Chemistry glassware that is NOT a beaker or test tube.
Graduated cylinder, flask, buret, pipet ...
500
Double Jeopardy: Add the following numbers: 3.0, 0.05, and 0.004 Use sig figs!
3.1
500
Double Jeopardy Name the FIVE FLAGS of a Chemical Change:
Heat, Color, Light, Precipitate, Gas
500
Double Jeopardy Name a method for separating components of a mixture:
Evaporation, decantation, filtration, etc
500
TRIPLE JEOPARDY! A column of red alcohol, vegetable oil, and blue water make a heterogenous mixture in a graduated cylinder. What property keeps them stacked onto each other?
Density