matter 67
A metal ball has a mass of 2 kg and a volume of 6 cm3. What is its density?
0.33 kg/cm
Calculate the density of a liquid if 35.4 mL of the acid has a mass of 65.14 g.
1.8 g/ml is the density
If a 96.5 g piece of aluminum has a density of 2.7 g/cm3, what is its volume?
35.7 is the volume of the piece of the aluminum
physical change
A change in a substance that does not involve a change in the identity of the substance
chemical change
A change in matter that produces one or more new substances
weight
A measure of the force of gravity on an object
What is matter?
Anything that has mass and takes up space
What remains the same no matter how much of a substance you have?
Density
What is true about all matter?
It has mass and takes up space
how do you find the volume of a solid?
L x W x H
What is volume?
The amount of space an object takes up
A solid is 5 cm tall, 3 cm wide, and 2 cm thick. It has a mass of 129 g. What is its density?
The density of the solid id 4,3 g/cm
Water has a density of 1 g/mL. What is the mass of the water if it fills a 10 mL container?
The mass of the water will be 10 g/ml
If two substances have the same volume, but the first one has greater mass than the second one, which one will have the greater density? Why?
The one that has more mass has more density because the more mass it has the more density it has.
Difference between mass and weight
Weight is affected by gravity, but mass isn't
rusting and tarnishing
after this happens the portion of the metal is not longer that it is another substance
how do you find mass?
density x volume
true of false chemical property": a characteristic of a substance that can be observed and mesure without changing the identity of the substance.
false
how much would weight on the moon?
less
what two things are not matter?
light and sound
how do find volume with mass?
mass divided by density
How do you find density?
mass divided by volume
2 types of physical properties
solubility and luster
density
the amount of mass in a given volume
mass
the amount of matter in an object
If someone cuts a block into 2 equal pices then what stays the same
the density
True of false the gravitational force of an object depends on the mass
true
true or false the mass on an object will never change
true
how do you find volume with water?
water displacement
