Dimensional Analysis
21 days to seconds
1,800,000 seconds
convert 2346575599857923758 to scientific notation
2.346575599857923758 x 10^18
what's the difference between a compound and a mixture
A compound is a pure substance and can't be physically broken down, while a mixture is not a pure substance and can be physically broken down.
how many sig figs are in 500.0
4
what do you do if you get a chemical in your eye
safety eye wash station
268 quarts to liters
254
2030000
What is the similarity between a compound and a mixture?
Both can be chemically broken down. The parts that make them up have different properties.
how many sig figs are in 0.0016
2
Why should you wear goggles in a lab
TO PROTECT YOUR EYES from chemicals
5,500 mm to yards
6.0 yards
Convert one nano meter to km. 1 meter= 1 billion nanometers
0.000000000001 km.
Is boiling point a physical or chemical property?
Physical property.
how many sig figs are in 7. 102
Cathy and Heathcliff are partners in a lab. Heathcliff starts a fire and points it at Cathy. What did he do wrong.
don't point fire at your friends
Convert 9.602 grams to pounds
21.17 pounds
9600
Is the sudden appearance of a solid a sign of chemical change or physical change?
Chemical change.
How many sig figs are in 453000
3
A person is wearing glasses. Does she need to wear goggles too?
Convert 535 years to seconds (answer in Scientific Notation)
1.69 x 10^10 seconds
convert 0.0518 to scientific Notation
5.18 x 10^-2
Is density an extensive or intensive property?
Intensive property.
How many sig figs are in 0.080
2
Sarah and Walker are in a lab. Walker isn't wearing an apron or close toed shoes. What could go wrong?
Walker could get chemicals on his feet which could hurt or cause damage and if he is not wearing an apron then he could get CHEMICALS ON HIS SHIRT OR SKIN.