Review QuestionsUnit 1 Exam

1. Where do paper towels go after being

used in a lab?

2. Is tasting chemicals allowed in the lab?

3. Which of the following is an element?

Water Salt Blood Wood Silicon

4. Which of the following is a mixture?

Salt Water Salt water Sugar Acetic Acid

5. What is the test used to distinguish

between a colloid and a suspension?

6. What is the test used to distinguish

between a solution and a colloid?

7. Next to each item write in if it is a

substance or a mixture? Soil Oxygen Blood Milk Carbon dioxide

8. Next to each item classify it as an

element, compound, colloid, solution, or suspension. Aluminum Aluminum oxide Vinegar Milk Muddy pond water Salt water

9. Identify the following as a physical or

chemical property of matter. Green color Melting point Luster Reacts with acid Reacts with oxygen Flammable density

10. Which of the following shows a chemical

change? (choose all that apply) Salt dissolves in water An apple is cut Wood rots Ice melts Baking soda reacts with vinegar Zinc is added to copper(II)chloride and a

color change occurs

11. What is mass?

12. What is volume?

13. What is density?

14. Finish the sentence.

Particles in a solid are packed so close they can only____________________.

15. Define a solid.

16. Define a liquid

17. Define a gas

18. What are the factors that determine an

object’s state of matter?

19. Convert the following units.

10mL=_____________L 25dL=___________hL 300g=___________Mg 100mm=______________km

20. If 1L=1.06qts and 4 qts. = 1 gallon, how

many gallons are there from 10L of water?

21. Convert the following numbers to

scientific notation.

0.0025 5,000 1,000,000 0.075

22. Put the following numbers in long-hand

notation. 1.8 x 105

2.3 x10-5

3 x108

23. What is the equation for density?

24. A cylinder has a mass of 125g, a radius

of 4 cm, and a height of 10cm. What is its density?

25. What is the mass of 460L of water if its

density is 1g/mL?