IPS Study Guide

first quiz

Safety

1. At what point can you take your goggles off? When Mr Leeds says to

2. When should you report any accidents to Mr Leeds? right away (when they happen)

3. What is the nurse's extension? 2828

4. Name three pieces of safety equipment located in the room. fire extinguisher, fire blanket, and the eye wash/shower

5. always _______ liquids to detect odor. waft

6. Never waft ______. solids/ powders

7. should you touch or taste chemicals? no

8. Always wash your hands with ______ after a lab. soap and water

9. What should you do if chemicals tough your skin? flush skin with water for 1 minute and notify Mr. Leeds

10.Do hot and cold glass look the same? yes

11. Should you use broken or chipped glass? What should you do if you find a test tube that is chipped or broken? No, then you should tell Mr Leeds and throw it away in the correct trash.

12. Never use _______ to insert or remove glass. force

13. What should you do to work safely with an alcohol burner? roll up sleeves and put up long hair

14. Should you walk away from a lit burner? No

15. Should you point the open end of a hot test tube at yourself or someone else? NO,

16. Do not look _______ into a test tube/beaker while it is being heated. Down

17. What should you do to the burner when finished? Make sure the burner is capped and the flame is out.

Lab: Reaction in a Bag

  • We combined multiple substance/chemicals to observe the reactions.
  • there were two colors (yellow- warm and bubbly, pink- cool not airy)
  • the bag also filled with air
  • A + liquid = hot-----exothermic reaction
  • B + liquid = cold-----endothermic reaction
  • A + B + liquid = gas
  • What is phenol red used for? ph indicator
  • ph measures acidity- 0-14, 0 is most acidic
  • Solid A- Calcium chloride
  • hydrotropic- attracted to water
  • Solid B- sodium bicarbonate
  • Is baking sodas acidic? no

Lab: Heating Baking Soda

  • We observed what happened when baking soda was heated.
  • gas comes from heating of baking soda
  • condensations comes from the hot vapor touching the color top of the test tube.
  • Are the heated baking soda and the regular baking soda the same substance and why? No because there is a color change
  • What is the control group? unheated test tube
  • What is the experimental group? heated test tube
  • What is the indicator? the tea
  • The independent variable causes a change in the dependent variable - heat causes and change in the color of the tea

Volume Notes

  • volume- l x w x h
  • 1 cm = 0.1 M
  • What should you use to measure the volume of liquids? a graduated cylinder
  • 100 cm = 1 M
  • 1 mL = 1 cm3
  • read from ____ of meniscus bottom


Balance Notes

  • Check that pan is ________ . clean and dry
  • always ________ before each massing. zero balance
  • Should you switch the pans. no
  • pick up the balance by the________ only. red bar
  • zero balance when done (true of false). false


Box Questions

  1. Why is baking soda used in baking? it releases gas that help to make the dough/better rise.
  2. How many cubic centimeters of water are required to fill a graduated cylinder to the 50.0 mL mark? 50.0 cm3
  3. Rectangular box A has a greater volume then rectangular box . But the length of box A is less than box B. How is this possible? the width/height of box b is greater than box A.
  4. What is the volume of the stone? 7 cm3
  5. how many cubes? what is the volume of each of the cubes? 8, 27
  6. which box has a larger volume? the second box.
  7. why are the divisions on the cone not evenly spaced? more surface, less depth, more depth, less surface
  8. 1.2 3.7
  9. 1.65 2.52 4.50
  10. 0.1 cm3 0.2 cm3
  11. 4.0 cm3 1.25cm3