Study of the composition and behavior of substances in living organisms.
What is Biochemistry.
100
What is one important step you must remember when converting?
What is
watch your units!
Make sure you cancel out the correct units
Always start with the given and make it into a fraction
Write your units you want to convert into off to the side
100
What is the rule for 0's between non 0 numbers (1-9).
What is They count.
100
State the equation for Density
What is D= m/v
100
which is in correct scientific notation?
A) 1.25 x 10 ^6
B) 12.5 x 10^5
What is A
200
A chemical change.
What is when a substance changes into a new substance.
200
How many meters are in 1 kilometer?
What is 1000m
200
How many significant figures are in:
1.00670g
What is 6.
200
State the equation of a line for a density problem. hint- plug in the labels for x and y.
What is mass= slope(volume) +b
200
Write this number in correct scientific notation:
112000
What is 1.12 X 10^5
300
A compound.
What is two or more elements chemically combined.
300
How many cm are their in 3 km?
What is 30,000.
**remember 1m= 100cm
300
How many significant figures are in 1.45 x 10 ^5?
What is 3.
300
Solve: Find the volume of an object who's density is 3.5g/ml with a mass of 50g.
**Round to the correct number of significant figures
What is 14.28571428... = 14 ml rounded to 2 sig figs
300
Write this number in correct scientific notation:
0.000567
What is
5.67 x 10^-4
400
Homogeneous Mixture
What is having uniform composition.
400
Convert 45 km/hr to m/min.
What is 750 m/min
400
Solve and round using the rules of significant figures.
45 x 5 =?
What is = 225 or 200 with 1 significant figure.
400
Solve: Find the Density of a substance takes up 2.5ml of space and has a mass of 67g.
*round to the correct number of significant figures
What is 26.8 = 27g/ml with 2 significant figures.
400
write this number in correct scientific notation.
67
What is
6.7 x 10^1
500
How compact the particles are in something.
What is Density
500
Light travels at 3.0 x 10 ^8 meters/second. How quickly does light travel in kilometers/hour?
What is 1.08 x 10^9
500
Solve and use the rules of significant figures to round your answer:
678.23 - 20.5 =?
What is 657.73 or 657.7 rounded to correct significant figures.
500
The slope in a mass vs. volume graph is the same thing as what?
What is the density! Hint: USE YOUR GRAPH ON YOUR EXAM! EVERYONE LOOK AT THEIR PRACTICE TEST!
500
Write this number in correct scientific notation.
8