What is density?
Compactness of a substance. How close the particles are packed together.
Jack has a rock that has a mass of 6g and a volume of 3cm3. What is the density?
What is 2g/cm3?
What is volume?
The amount of space an object takes up.
What substance is the least soluble at 100C?
sodium chloride
What measurements are needed to determine average speed?
a. total time and total distance
b. average time and total distance
c. distance, direction, and starting time
d. total time, direction, and departure time
A
What is solubility?
A measure of the amount of solute that can dissolve in a solvent
A cube measures 1.5 cm on each side and has a mass of 17.4. What is it's density?
What is 5.16 ?
Which eye is appropriately positioned to accurately measure the volume of the water?
middle
At what temperature is the solubility potassium nitrate and ammonium chloride the same?
26C
Describe the object's motion between 0-2 s.
Constant positive acceleration
What is the formula to calculate density?
Density = mass/volume
A rock has a volume of 15 ml and a density of 2g/ml. What is the rocks mass?
What is 30g ?
Determine the volume of this object
69mL- 65mL = 4 mL
If 50 g of NH4Cl was added to 100g of water at 70C, how much more solute will dissolve?
10g. Period!
How far did the object travel between 2 and 5 seconds?
120 m
What is a characteristic property?
A physical property that can be used to determine the identity of a substance
If two cubes are placed into the same container and they displace the same amount of water but have different densities. How is this possible.
What is different masses?
A rock has a mass of 100g and a density of 20g/ml. What is the rocks volume.
What is 5 ml?
If 60g of KCl was added to 100g of water at 50C, how much solute will remain undissolved?
About 18g.
Abby was walking to her friend's house when she noticed some wild blackberries growing on the side of the road. She decided to pick and eat some of them. How much time did she spend at the blackberry bush?
4s
Density and solubility are physical properties. They are also ______ properties
characteristic
A rock is placed into a graduated cylinder with 30ml of water. The water increased to 51 ml of water. The rock has a mass of 100g. What is the rocks density?
What is 4.76?
What is the volume of object C?
0.3 cm3
The solubility of which substance (A-E) is least affected by changes in temperature?
B
How does an inclined plane make work easier?
a. by changing the direction of the force
b. by decreasing the amount of force needed
c. by increasing the distance over which the force is applied
d. by increasing your efficiency
B