Density/Solids
How close molecules are in a given space is...
Density
+
What is true about cm3 and mL?
they are equal to each other
-
What happens to the level of water when a solid is added to it?
The water level rises
+
If thermal (heat) energy is added to solid or liquid molecules, what happens to their spacing?
The spacing increases, molecules move farther apart
+
D = 5 g / 2.5 cm3
2 g/cm3
+
The label for the density of solids is...
g/cm3
-
What is the denstiy of water?
1 g/cm3 OR 1 g/mL
+
When a solid is placed in a liquid, the new level of the liquid will be the volume of the water, plus the ____________ of the solid
volume
-
If thermal (heat energy) is added to 64 mL of water, how will the heat impact that level of water?
It will cause it to increase (rise)
+
What is density of an object that has a volume of 3 cm3 and a mass of 12 g?
4 g/cm3
-
The formula for density is...
D=M/V
-
What is the mass of the water in each cylinder when one cylinder has 32 mL of water, and the other has 48 mL ?
32g and 48g
+
If an object that has a volume of 7 cm3 is placed in a graduated cylinder that contains 26 mL, what will the new water level be?
33 mL
+
A fluid of 9 g/mL is combined with a fluid of 7g/mL. Which one is floating?
7 g/mL
+
What is the denstiy of a 63 g container that measures 12 cm in height, 2 cm in length and 1cm in width?
2.6 g/cm3
-
How do you find volume and mass of a solid?
V = L*W*H
M = G on a scale
+
When combining water, alcohol, syrup, and oil, in which order do they stack in a graduated cylinder?
Bottom to top:
Syrup, water, oil, alcohol
-
If an object that has a volume of 12 cm³ is placed in a graduated cylinder that initially contains 37 mL, what will the new water level be?
49 mL
+
A solid has a density of 3.7 g/cm3. What will happen to the solid when it is placed in water, which has a density of 1.0 g/cm3?
The solid will sink
+
A solid object is placed in a graduated cylinder that initially contains 15 mL of water. The object has a mass of 0.7 g and causes the water to rise to 22 mL. What is its density? (rounding and labels both matter!)
0.1 g/cm3
-
What is the density of a 150g solid box with a length of 4cm, a width of 3cm, and a height of 6cm? (Must report to the nearest 10th, rounding and labels matter!)
2.1 g/cm3
+
What is the density of 98 mL of a liquid that has a mass of 63.5 g? (rounding and labels both matter!)
0.6 g/mL OR 0.6 g/cm3
+
An object is placed in a graduated cylinder that initially contains 37 mL of water. The object has a mass of 11 g and causes the water to rise to 52 mL. What is its denstiy? (rounding and labels both matter!)
0.7 g/cm3
-
Ice is colder than liquid water. The molecules in ice are slower, and the bonds are stronger, than in liquid water. If molecules come closer together (more dense) in solids as they cool, why does ice float in a glass of water and not sink?
Ice molecules move slightly farther apart when forming their bonds, thus taking up more space while the mass remains the same. Ice becomes less dense than the water
-
You have a chunk of oak that will be made into a large table. You have another chunk of oak that will be made into a table half the size of the first. Which table will have a higher density? The large table or the small one?
They will have the SAME density because they are made of the same wood
+