1answer.
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
Anarel [89]
3 years ago
13

PLEASE HELP FAST!! How much energy (in calories) is need to melt 3.0 moles of ice?

Chemistry
1 answer:
Viktor [21]3 years ago
4 0

Answer:

Energy

Explanation:

The heat required to change the phase of a substance is given by the equation:

Q= mL (Q= Heat required, m= mass, L= Latent Heat of Fusion/Evaporation/Anything else).

So, according to your values:

Q= 3.0 kg x 333 kJ/Kg

So, Q= 999 kJ

You might be interested in
What does a TRAAP test stand for
Aleks [24]

Answer:

TIMELINESS, RELEVANCE, AUTHORITY, ACCURACY and PURPOSE.

Explanation:

hope it helps!

7 0
3 years ago
Read 2 more answers
Does the amount of methanol increase, decrease, or remain the same when an equilibrium mixture of reactants and products is subj
denis23 [38]

Answer:

a. Methanol remains the same

b. Methanol decreases

c. Methanol increases

d. Methanol remains the same

e. Methanol increases

Explanation:

Methanol is produced by the reaction of carbon monoxide and hydrogen in the presence of a catalyst as follows; 2H2+CO→CH3OH.

a) The presence or absence of a catalyst makes no difference on the equilibrium position of the system hence the methanol remains constant.

b) The amount of methanol decreases because the equilibrium position shifts towards the left and more reactants are formed since the reaction is exothermic.

c) If the volume is decreased, there will be more methanol in the system because the equilibrium position will shift towards the right hand side.

d) Addition of helium gas has no effect on the equilibrium position since it does not participate in the reaction system.

e) if more CO is added the amount of methanol increases since the equilibrium position will shift towards the right hand side.

3 0
3 years ago
Butane C4 H10 (g),(mc016-1.jpgHf = –125.7), combusts in the presence of oxygen to form CO2 (g) (mc016-2.jpgHf = –393.5 kJ/mol),
Mice21 [21]
 once you do all the math the answer is c
4 0
3 years ago
Read 2 more answers
6.3x10-5M. What is the pH?
BabaBlast [244]

Answer:

https://sensorex.com/ph-calculator/

Explanation:

go to this link and then scroll down a little bit and then you'll find the answer

5 0
2 years ago
Density is anything that has mass and takes up space.<br><br> A. True<br><br> B. False
sergij07 [2.7K]
True because it is correct
4 0
3 years ago
Read 2 more answers
Other questions:
  • Summarize the rules for the allowable values of the four quantum numbers of an electron in an atom.
    13·1 answer
  • Calculate the amount of energy released by the freezing of 13.3 g of water
    9·1 answer
  • When does the cell membrane dissapear
    8·1 answer
  • If I have an unknown quantity of gas at a pressure of 50.65 kPa, a volume of 25 liters, and a temperature of 300 K, how many mol
    14·1 answer
  • Which type of unconformity exists between two horizontal rock layers if the older rock is much older than the younger rock?
    6·1 answer
  • What is fake love ??????(|_|)<br>​
    14·1 answer
  • How many electron regions is in a nitrate ion using molecule geomerty
    8·1 answer
  • Have you had the chance to watch a tree grow over a span of several years? Did you notice that the tree grew thicker and taller?
    15·1 answer
  • How many electrons are present in the nonbonding π molecular orbital of the allyl anion? a. 2 b. 1 c. 3 d. 0
    13·1 answer
  • A current is applied to two electrolytic cells in series. In the first, silver is deposited; in the second, a zinc electrode is
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!