Definitions
One type of atom that can not be broken down any further
What is an Element
The law of conservation of matter states that matter can not be created or destroyed. With that knowledge, the mass of the reactants are (less than, greater than, or equal to ) the mass of the products
What is EQUAL
A substance is giving off heat, light, and smoke. Most likely the type of change that is occurring is ________________.
What is chemical change
Rank the states of matter from slowest to fastest particle speed.
(slowest):solid
liquid
gas
(fastest) plasma
Two or more elements combined in a certain ratio.
What is a compound
The formula for density is mass/volume. How would you find the mass if given the density and volume?
What is mass=densityXvolume
When water turns into ice, this is called ______. ________ is a _______ change.
Freezing
Freezing
Physical
A student placed a rock into a graduated cylinder containing water, causing the water level in the cylinder to increase by 20mL. This increase represents the rock’s?
What is the volume
A change in size, shape, or phase is known as a _________ change
What is physical
What is the mass of the object?
What is 545.2g
When a gas changes into a liquid, it is called
What is condensation
All matter is made up of particles called
What is atoms
The density of water is (include units)
What is 1.0g/mL
In the water displacement method, how do you find the volume?
What is subtracting the initial volume from the final volume.
True or False. Combining hydrogen and oxygen to make water is a physical change.
Hydrogen and Oxygen are ______________
What is False.
Elements
A candle floats in water but sinks in alcohol. This is because
What is, The candle is less dense than water but more dense than alcohol
A student placed a rock on the triple beam balance and discovered that the rock weighed 20 grams. When the student placed the rock in the water, the water changed from 10mL to 15ml .Find the density of the rock. Include the units!
What is 4g/mL
If you cut a wooden block in half, what happens to the density of the wooden black
What is nothing! Density stays the same unless heat or pressure is applied.