Ethylene oxide is a highly flammable gas used to sterilize medical equipment. To prevent a fire hazard, ethylene oxide should only be used in an area .a. with open windows and doorways. b. with non-flammable equipment only. c. without fire extinguishers. d. without sparks or flames.

Ethylene oxide is a highly flammable gas used to sterilize medical equipment. To prevent a fire hazard, ethylene oxide should only be used in an area without sparks or flames.

Explanation:

The places of use of ethylene oxide must be centralized, thus guaranteeing a permanent renewal of the air in the sterilization area by using forced air extraction, respecting the storage and transport regulations, always avoiding contact of the oxide of ethylene with any source of ignition (fire), whether in the work environment, in transport or at the place of deposit.

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.