Semester 1 Study Guide Physical Science

148 cards   |   Total Attempts: 187
  

Cards In This Set

Front Back
You put 1 spoonful of salt into 1 liter of water and stir. The resulting liquid is an example of a(n)
Homogeneous mixture
The chemical formula for water, H2O, means that each water molecule contains
Two hydrogen atoms and one oxygen atom
Lead has a density of 11.3 g/cm3 and a mass of 282.5 g. What is its volume?
25 cm3
The smallest unit of an element that maintains the properties of that element is a(n)
Atom
Solids, liquids, and gases are three forms of matter that
All of the above
How many atoms are in a single molecule of Fe2O3
5
Which of the following is not a pure substance?
Mixture
Which of the following is an element?
Iron
Diamond is known for its
Hardness
Helium is used in balloons because it is
Lighter than air
A physical property of gold is its
Density
The mass of a 20 L sample of gas with a density of 0.04 mg/L is
0.8 mg
An object's volume can be found by dividing its mass by its
Density
How can a chemical change be reversed?
By chemical changes
Which of the following causes a chemical change?
Burning