« previous next »

Author Question: The chemical components of HCFC refrigerants are: A) Helium, carbon, frankincense, and Clorox. B) ... (Read 112 times)

karateprodigy

  • Hero Member
  • *****
  • Posts: 550
on: Jul 24, 2018
The chemical components of HCFC refrigerants are:
 
  A) Helium, carbon, frankincense, and Clorox. B) Hydrogen, chlorine, Freon, and chromium.
  C) Hydrogen, chlorine, fluorine, and carbon. D) Helium, carbon, Freon, and chlorine.

Question 2

Why do some commercial buildings need air conditioning in the winter?
 
  A) Commercial buildings often have large internal heat loads from people, lights, and machines.
  B) The complexity of control systems for commercial buildings often causes a system to cool a building even when cooling is not needed.
  C) Commercial buildings are maintained at lower temperatures to improve productivity.
  D) Lower temperatures reduce the spread of bacteria.


iceage

  • Guest
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

karateprodigy

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 24, 2018
Thanks


iceage

  • Guest
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Loewi's experimental discovery of chemical neurotransmission. Loewi's experimental discovery of chemical neurotransmission.
Components of E.coli Components of E.coli
Carbon dioxide. This molecule exhibits a nonpolar bond and results in a linear and symmetrical ... Carbon dioxide. This molecule exhibits a nonpolar bond and results in a linear and symmetrical ...
A typical electric cooling fan assembly showing the radiator and related components. A typical electric cooling fan assembly showing the radiator and related components.
Atmospheric carbon dioxide concentrations in ppm Atmospheric carbon dioxide concentrations in ppm
Forms of carbon dioxide in the blood Forms of carbon dioxide in the blood
Video: Skin Cancer

For a complete list of videos, visit our video library