Properties of Matter
What is matter?
Anything that has mass and takes up space.
What is an element?
A substance that contains only one type of atom.
The water in a graduated cylinder measures at 114 mL. You place an object in and the water goes up to 257 mL. What is the volume of the object?
143
What are the three phases of matter?
Solid, liquid, and gas
A popsicle melting is which type of change? Explain.
Melting, heat is being absorbed from the atmosphere into the popsicle.
What is solubility? Give one example.
Solubility is the ability of one substance to dissolve into another. Examples will vary.
What is a compound?
Substance that consists of two or more different atoms.
Calculate the density of a substance that has a mass of 171 g and a volume of 15 cm.
11.4
Describe how the particles look in the three phases of matter.
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What happens during a phase change?
Heat is either absorbed or released, changing from one state of matter to another.
In magnetism, if you take the north end of a magnet, and try to connect it to the south end of another magnet, what will happen?
Attract.
Draw an element.
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Determine the density of a cube (length of 4in, width of 12in, and height of 3in) if the mass is 25g.
0.174
Which state of matter takes the shape of its container, and has a definite volume?
liquid
Describe what happens to the molecules when a substance freezes.
Molecules slow down and move closer together at the item releases heat.
If you take a substance with high heat, what will happen when you try to dissolve a substance into it?
High heat = high solubility. The substance will dissolve quicker.
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How are mass and weight different?
Mass is the amount of "matter" in an object, and weight is the force exerted on an object by gravity.
Which state of matter has a definite shape, and a definite volume?
solid
Explain what happens with heat during a phase change from a liquid to a gas.
Heat goes into the liquid (is absorbed) as it vaporizes.
What is an example of a conductor (something that allows heat to travel through it)?
metals, water, the human body, grapite, etc.
What things can form when atoms combine?
elements, compounds, and molecules.
If an object has a density that is less than water, will it sink or float?
float
Describe a gas (molecules, volume and shape).
Gasses have no definite shape or volume. The molecules are very spread apart, and will continue to spread indefinitely.
What is a phase change from a solid to a gas called?
sublimation