answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepan [7]
2 years ago
7

Permanent safety markings are NOT required on which of the following areas on household refrigerators using HC refrigerants?

Chemistry
1 answer:
MrRissso [65]2 years ago
8 0

On the inside of the refrigerator door are NOT required Permanent safety markings

<u>Explanation:</u>

Normally in red color the Permanent safety markings arre done. That are wanted on household refrigerators that accept any refrigerant with an A3 flammability grade such as HCs, on or near any evaporators, any exposed refrigerant tubing, near the machine compartment, and on the exterior of the refrigerator.

Each of these markings shall be in words no short than 6.4 mm (1/4 inch) long. Room residents should remove the place quickly regarding the unexpected release of this refrigerant. "DANGER—Risk of Fire or Explosion. Flammable Refrigerant Used. To Be Repaired Only By Trained Service Personnel. Do Not Puncture Refrigerant Tubing.”  is the quote to be marked in the above specified places.

You might be interested in
Solid calcium carbonate (CaCO3) reacts with hydrochloric acid (HCI) to form carbon dioxide, water, and
Pavlova-9 [17]

Using a more concentrated HCl solution and Crushing the CaCO₃ into a fine powder makes the reaction to occur at a faster rate.

<u>Explanation:</u>

CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + H₂O(aq) + CO₂(g)

When calcium carbonate reacts with hydrochloric acid, it gives out carbon-dioxide in the form of bubbles and there is a formation of calcium chloride in aqueous medium.

The rate of the reaction can be increased by

  • Using a more concentrated HCl solution
  • Crushing the CaCO₃ into a fine powder

When concentrated acid is used instead of dilute acid then the reaction will occur at a faster rate.

When CaCO₃ is crushed into a fine powder then the surface area will increases thereby increasing the rate of the reaction.

3 0
2 years ago
Read 2 more answers
Mass in grams of 6.25 mol of copper (II) nitrate?
podryga [215]
Cu = 63.546
N= 14.001 g/mol
O= 15.999 g/mol * 3 = 47.997

Copper (II) Nitrate has a MW of 125.544 g/mol

6.25 x 125.544

= 784.65 <--- is your answer, if there were was a multiple choice or not :)
8 0
2 years ago
Read 2 more answers
In each pair of statements, choose the example that is more reliable.
TEA [102]

Answer:

"statement 2" for the first pair and "statement 1" for the second pair

Explanation:

3 0
2 years ago
Read 2 more answers
Which process is based on repulsion of oil and water?
Inessa [10]

Answer:

We can seprate oil and water by the process of seprating funnel

5 0
2 years ago
Read 2 more answers
HIPVs can cause what two more severe illnesses?
Nat2105 [25]
One of them are Cancer
4 0
2 years ago
Other questions:
  • Which statement explains why sulfur is classified as a Group 16 element?
    5·2 answers
  • When 200 grams of water cools from 50.°C to 25°C, the total amount of heat energy released by the water is?
    7·1 answer
  • Describe the sequence of adding ingredients to make the recipe for condensed tomato soup. To mix the ingredients, you have an in
    7·1 answer
  • How many grams of caf2 would be needed to produce 8.41×10-1 moles of f2?
    9·1 answer
  • Three units put together in different patterns essentially make
    12·2 answers
  • What is the best example of a cyclic event?
    7·1 answer
  • What we call "tin cans" are really iron cans coated with a thin layer of tin. The anode is a bar of tin and the cathode is the i
    13·1 answer
  • Sample (3.585g) contains 1.388g of C, 0.345g of H, 1.850g of O and its molar mass is 62g. What is the molecular formula of this
    5·1 answer
  • The following questions refer to the gas-phase decomposition of ethylene chloride. C2H5Cl ® products Experiment shows that the d
    12·1 answer
  • What volume in<br><br> L<br><br> of a 0.724 M Nal solution contains 0.405 mol of Nal ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!