vocabulary
This is the amount of matter in an object
what is mass
Give the three density formulas
D = M/V
V = M/D
M = VxD
Name the three causes of density
atomic mass, atomic bonds, and mixed density
They have particles closer together, or more spread out.
Water expands when frozen, making ice less dense (same mass larger volume)
compare the density of cold water to hot water
cold water is more dense
hot water is less dense
heat rises
This is the amount of space an object takes up
What is volume
A solid magnesium flare has a mass of 1300g and a volume of 743 cm. What is the density of the magnesium?
what is 1.74 g/cm
this is the major cause of density in oxygen
what is atomic mass
why does an objects state of matter affect its density?
The particles in an object will be closer together or further apart - making it more or less dense
if you have two samples of the same substance, but one sample is smaller that the other, the smaller sample will........
have the same density
This is how compact molecules are within a specific volume
what is density
Pure gold has a density of 19.3 g/cm. How large would a piece of gold need to be if it had a mass of 318.97g?
what is 16.526 cm
this is the major cause of density in sugar
what is atomic bonds
what is the
mass will decrease by half
volume will decrease by half
density will stay the same
This is an element with an atomic mass of 4 amu -
(cause 1)
what is helium 2 protons, 2 neutrons
this is the upward force exerted by a fluid that opposes the weight of an immersed object.
What is buoyancy
An irregularly-shaped sample of aluminum is put on a balance and found to have a mass of 43.6 g. You use the water-displacement method to find the volume. The initial volume reading is 25.4 mL and, after the Al sample is added, the water level has risen to 41.7 mL. Find the density of the Al.
What is 2.67 g/ml
name the three causes of density and give a real life example of each
atomic mass - vary
atomic bonds - vary
mixed density - vary
what is the relationship between a cubic centimeter and a milliliter?
They are equal
1ml = 1cm
rank these objects in order from greatest to least
rubbing alcohol, vegi oil, glass marble, salt water, ping pong ball, tap water
what is
glass marble, salt water, tap water, vegi oil, RA, ping pong ball
this is the simplest and lightest and most abundant element in the universe
what is hydrogen
A graduated cylinder has a mass of 50g when empty. when 30ml of water is added the GC has a mass of 120g. if a rock is added to the GC, the water level rises to 75ml and the total mass is now 250g.
What is the density of the rock?
What is 130/45 = 2.88 g/ml
you are calculating the density of your copper jewelry box. Inside you have jewelry made from pure gold, silver, platinum and copper.
Name which cause of density this is, and explain why
you are calculating the total densities of a variety of elements together.
Explain in detail what will happen to a birthday candle when placed in tap water and rubbing alcohol?
in water it will float
in RA it will sink
water is more dense that RA
this is the cause of density for a Substance
cause 1 - atomic mass
and
cause 2 - atomic bonds
a substance is either an element or compound!