Presentation on theme: "Properties of Matter Review CPE 2011. 2.1 What Is Matter?"— Presentation transcript:
Properties of Matter Review CPE 2011
2.1 What Is Matter?
The smallest unit of an element that maintains the properties of that element is a(n) :10 1.molecule 2.atom 3.substance 4.compound
Which of the following is not a pure substance? 1.Element 2.Molecule 3.Compound 4.Mixture :10
Which of the following is a mixture? :10 1.Air 2.Sodium chloride 3.Pure Water 4.Sulfur
Which of the following is not a homogeneous mixture? :10 1. silver 2. salt water 3. tea 4. clear lemon-lime soda
________ is an example of matter, while _______ is not matter. :10 1.Heat; paper 2.Sound; sunlight 3.Sunglasses; water 4.Air; sunlight
7.1 Solutions and Other Mixtures
One example of a heterogeneous mixture is :10 1.muddy water. 2.plain water. 3.salt water. 4.air.
Some rubbing alcohol is a uniform mixture of isopropanol and water. This mixture :10 1.is a solution. 2.settles out upon standing. 3.is heterogeneous. 4.is immiscible.
Particles in a _______ can be separated by filtration. :10 1.alloy 2.solution 3.suspension 4.all of the above
Cinnamon sugar can be best classified as a(n) :10 1.element 2.compound 3.homogeneous mixture 4.heterogeneous mixture
Carbon is an example of a :10 1.Element 2.Compound 3.Pure substance 4.Both 1 & 3
2.2 Properties of Matter
Which of the following statements does not describe a physical property of iron? :10 1.Iron is denser than aluminum. 2.Iron melts at 1535°C. 3.Iron can be formed into different shapes. 4.Iron reacts with strong acids.
All of the following are units for density except :10 1.g/mL 3 2.g/mL 3.g/cm 3 4.g/L
Which of the following is not a physical property of matter? :10 1.Boiling point 2.Flammability 3.Solubility (how well something dissolves) 4.Density
What is the volume of a 45 g piece of copper that has a density of 8.92 g/mL? : mL mL mL 4.54 mL
A block of wood has dimensions of 9.5 cm long, 2.3 cm wide, and 1.8 cm high. What is the density of the block of wood if it has a mass of 28.6 g? : g/cm g/cm g/cm g/cm 3
2.3 Changes of Matter
Which of the following is a physical change? :10 1.Melting ice cubes 2.Burning paper 3.Rusting iron 4.Burning gasoline
One property of all mixtures is that they :10 1.can be separated without chemical changes. 2.contain a definite ratio of elements. 3. contain chemically combined elements. 4.are solutions.
All of the following are indicators of chemical changes except that :10 1.gas is released. 2.light and sound are released. 3.the substances don’t change. 4.new substances are formed.
Which of the following is not a physical way to separate a mixture? 1.using a magnet to pick up one part of the mixture 2.heating the mixture until it burns 3.passing the mixture through a filter 4. spinning the mixture in a centrifuge :10
Which of the following is least likely to be a sign that a chemical change is taking place? 1.A bright flame is produced. 2.Bubbles of gas are released. 3.A solution changes from colorless to red. 4.Spilled rubbing alcohol seems to disappear. :10
3.1 Matter and Energy
Which segment represents the solid state only? 1.A to B 2.B to C 3.C to D 4.D to E :10
Which segment represents evaporation? 1.A to B 2.B to C 3.C to D 4.D to E :10
What is happening to the particles during segments D to E? :10 1.Moving faster 2.Spreading apart 3.Moving faster and spreading apart 4.Moving slower and closer together
Freezing/solidification is a ____ change because ___. :10 1.Endothermic; heat energy is gained 2.Exothermic; heat energy is lost 3.Endothermic; heat energy is lost 4.Exothermic; heat energy is gained
Which of the following is not a part of the kinetic theory of matter? :10 1.Higher potential energy means higher temperatures 2.Higher temperatures make particles move faster 3.Large particles move more slowly 4.All matter is made of particles