1. Anything that has mass and volume is called _____. matter

2. Chemistry The study of the properties of matter and how matter changes is called _____.

3. colorless physical density physical corrosive chemical elastic physical reacts with base to form hydroxide chemical supports combustion chemical Sour taste physical Boiling point physical Classify the following as physical properties or chemical properties. Reacts with water to form a gas chemical Reacts with an acid to form water chemical volume physical Freezing point physical Can neutralize an acid chemical Slippery texture physical odor physical

4. Properties that indicate how a substance will react or combine with another substance are called _____ properties. chemical

5. Properties that are observed with the senses and can be determined without changing the substance into something new are called _____ properties. physical

6. Classify the following as a physical change or a chemical change Some may be both kinds of change. Dissolving one metal into another metal to make an alloy. physical Mixing hydrochloric acid reacts with sodium hydroxide to produce a salt, water and heat. chemical A piece of magnesium ribbon is cut in two. physical Water vapor condenses and forms a cloud. physical Hydrogen peroxide decomposes to water and oxygen gas. chemical Dry ice undergoes sublimation. physical Hydrochloric acid on limestone produces carbon dioxide gas. chemical Milk sours. both

7. Classify the following as an element, compound or mixture. Tacos mixture Water compound Hydrochloric acid compound Gold element Air (our atmosphere) mixture Uranium element Chlorine element Table salt NaCl - compound

8. Classify the following as an solid, liquid, gas or plasma. Substance with a specific volume and shape. solid Substance made of high energy particles that take the shape of the container. gas Particles are only vibrating. solid Phase of extremely high energy particles with a charge. plasma Substance with a specific volume but no definite shape. liquid Phase of matter in stars. plasma Particles in the substance have enough energy to move around each other liquid Particles can be compressed into a smaller volume. gas