Week4 Worksheet4

1. is the loss of an electron by one reactant and is the gaining

of electrons by another.

2. In making homemade explosives, aluminum oxide shavings are often mixed with ammonium

nitrate - fuel oil (ANFO) explosive. What effect would this have on this explosive?

3. Why are halogens (F

, Cl

, Br

, I

, etc) called oxidizers?

Oxidation is the loss f electrons. Each of the halogen element potentially takes the electrons from

another element to make their own irons. This makes them oxidizing agents. Fluorine is a very

strong oxidizing agent and it is almost impossible to do a solution reactions with it. The oxidizing

ability of the halogens usually decrease as you go down the group.

4. Organic peroxides can self-react and combine to form unstable molecules. This type of self-

reaction is called.



A. precipitation



B. sublimation



C. hybridization



D. polymerization

5. The correct name for CaCO

6. The correct formula for sodium chlorate is

7. The correct name for KMnO

8. The correct formula for aluminum borite is

9. What does DOT 5.2 Type C mean?

This is the organic peroxide means any organic compound that contains Oxygen in the bivalet –O-O-

structure and it can be considered as a derivative of hydrogen peroxide whereby the hydrogen

atoms have been replaced by the organic radicals.

10.

Match the follow term with it's definition.

A. The maximum concentration limit averaged over a 15 min period to which healthy adults can

be exposed safely. This limit should not occur more than 4 times a day, and 60 min between

exposures.

B. The maximum concentration averaged over 8 hrs to which 95% of health adults can be

repeatedly explosed for 8h/day 40h/week.

C. The dose by ingestion or absorption (liquid/solid) in which 50% of the tested population died

from an introduction of this chemical.

D. The concentration that should not be exceeded during any part of the workday.

E. The airborne concentration of which 50% of the tested population died from an introduction

of this chemical.

F. Time-weighted average concentration limit over a 8 hr day and 40 hr work week, to which all

workers can be exposed without adverse effect and without protection equipment.

G. The maximum concentration of a chemical that healthy adult can be exposed for up to 15 min

and escape without irreversible health effects.

1. TLV-TWA

2. TLV-STEL

3. LC50

4. LD50

5. IDLH

6. TLV-C

7. PEL

11. What are 4 routes of entry in the body?

The four routes that a substance can enter the body are absorption, inhalation, injection and ingestion.

Inhalation is when substances such as vapour, mists, gases or particulates gets into the body through

the nose. Once inhaled, it is then exhaled or absorbed in the repository system.

12. The airborne concentration unit ppm is for



A. gases



B. liquids



C. solids



D. liquids and solids only



E. gases, liquids and solids

13. The airborne concentration unit mg/m3 is for



A. gases



B. liquids



C. solids



D. liquids and solids only



E. gases, liquids and solids

14.Look in additional files for 4a

A. 1 hexanamine

B Nitrogen dioxide

c. triazole

15. hexyl methylflourophosphonate C

Isopropyl methylfluorophosphonate E

O-ethyl S-(2-diisopylaminoethyl)methylphosphonothiolate B

Carbonyl dichloride D

Ethyl dimethylaminocyanophosphate A

N-methyl-bis(2-chloroethyl)amine F

Bis(2-chlorovinyl) arsine H

2-(3-chlorophenyl1)-1, 1 – disyanoethene G

1,2,2-trimethylpropyl methylfluorophosphonate I

16. Sugar has a LD50.

True

False

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