1. Which change in state is shown below? a. melting b. freezing c. evaporation d. condensation. 2. Which change in state is shown below?

Transcription

1 matter 1. Which change in state is shown below? a. melting b. freezing c. evaporation d. condensation 2. Which change in state is shown below? a. melting b. freezing c. evaporation d. condensation 1 of 6

2 3. Which change in state is shown below? a. melting b. freezing c. evaporation d. condensation 4. Density is defined as. a. the shape of a certain mass b. the amount of volume to a certain shape c. the amount of mass in a given volume d. the length of a certain mass 5. A substance made up of atoms of two or more different elements joined by chemical bonds a. mixture b. compound c. substance d. collide 6. An example of a chemical change is. a. boiling b. burning c. melting d. freezing 7. What are the four states of matter? a. color, shape, size, and density b. solid, liquid, vacuum, and plasma c. heat, temperature, length, and mass d. solid, liquid, gas, and plasma 8. What substance does not have the property of ductility? a. silver b. water c. copper d. platinum 2 of 6

3 9. Another word for element is? a. Compound b. Pure Substance c. Mixed Substance d. Solid 10. A combination of two or more substances that are NOT chemically combined. a. elements b. mixture c. atoms d. solvent 11. Jeanette is studying a substance. Which property of the substance is chemical? a. its density b. its temperature c. its melting point d. its flammability 12. The measure of the amount of matter in an object is called a. volume b. energy c. mass d. size 13. Which of these is an example of a physical change? a. fireworks b. baking a cake c. melting ice d. candle burning 14. What is a chemical change? a. A substance changes due to its chemical properties, but the substance stays the same b. A substance changes due to its chemical properties and forms a new substance c. A substance changes due to its physical properties 15. What is a physical change? a. The physical properties of a substance changes, but the identity of the substance does not change b. The physical properties of a substance changes and the identity of the substance changes c. The physical properties remain the same d. The physical and chemical properties of a substance changes 16. What is the main difference between acids and bases? a. The way they react to chemical changes b. The ph c. The way they react to physical changes d. The taste 3 of 6

4 17. Ice floats because it has density than water. a. less b. more c. same d. conductivity 18. The amount of space an object occupies. a. length b. area c. perimeter d. volume 19. FInd the Density Mass= 120 g Volume= 96 cm a g/cm b g/cm c g/cm d g/cm 20. What is a good sign that a chemical change has occurred? a. the substance seems to have disappeared b. the state of the matter has changed c. the production of heat, light, and smoke d. the physical properties are the same 21. In science lab you are given the four substances listed below with their densities: Honey Olive oil Water Ethyl alcohol 1.42g/cm g/cm g/cm g/cm 3 You are asked to combine all four substances in a beaker and observe how they separate. Which correctly lists the order in which the four liquids separate, starting with the one on top to the one on the bottom of the beaker? a. Ethyl alcohol, Olive oil, Water, Honey b. Honey, Water, Olive oil, Ethyl alcohol c. Water, Ethyl alcohol, Honey, Olive oil d. Olive oil, Honey, Ethyl alcohol, Water 4 of 6

5 22. Find the density. mass= 44g Volume=44cm3 a. 0 g/cm b. 44 g/cm c. 1 g/cm d. 11 g/cm 23. A(n) is the smallest piece of an element that can be recognized as that element. a. mass b. group c. shell d. period e. atom f. element g. number 24. A. atom B. salt C. chemical formula D. chemical change E. element F. atomic number G. ion H. chemistry 1. the process in which different types of atoms join and form a new substance 2. a substance; only one kind of atom 3. an atom that has gained or lost electrons 4. the smallest piece of an element that can be recognized as that element 5. chemical symbols and numbers abbreviating the name of a compound 6. based on the number of protons in the nucleus 7. the study of matter...what it is made of, how it reacts to other matter, what its usual characteristics are 8. an ionic compound produced from a reaction between an acid and a base 25. Particles of matter have because they are constantly moving. a. volume b. density c. kinetic energy d. heat 5 of 6

6 26. A teacher mixes a white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats the mixture until the water evaporates and the powder can be seen again. Which property of the powder is the teacher demonstrating? a. Solubility b. Density c. Conductivity d. Mass 27. A reaction is a change that doesn't change the chemical substance, only the appearance of the substance. 28. Fireworks exploding is an example of a. a chemical change b. a physical change 29. A rusting nail is an example of a. a physical change b. a chemical change 30. The ability of a substance to burn. a. reactivity b. flammability c. inertia d. malleability 31. How easily a substance reacts with another substance is called. a. reactivity b. flammability c. indicator 6 of 6