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
Luden [163]
3 years ago
10

How much energy (kJ) is required to change 0.18 mole of ice (s) at 0 C to water (l) at 0 C?

Chemistry
1 answer:
Dmitriy789 [7]3 years ago
6 0

Answer:25,06 kJ of energy must be added to a 75 g block of ice.

ΔHfusion(H₂O) = 6,01 kJ/mol.

T(H₂O) = 0°C.

m(H₂O) = 75 g.

n(H₂O) = m(H₂O) ÷ M(H₂O).

n(H₂O) = 75 g ÷ 18 g/mol.

n(H₂O) = 4,17 mol.

Q = ΔHfusion(H₂O) · n(H₂O)

Q = 6,01 kJ/mol · 4,17 mol

Q = 25,06 kJ.

Explanation:

You might be interested in
Select the correct answer.
Artist 52 [7]
I think c cause if he is in a relationship that’s abusive he needs to speak up before it goes way worst.
3 0
3 years ago
Balance the following chemical equation <br> __Mg+__O2–&gt;__MgO
mario62 [17]

Answer:

2Mg^+ +O2 right arrow 2MgO

Explanation:

6 0
4 years ago
Read 2 more answers
What is the number of moles of glucose C6H12O6 in a 134g sample?
Shkiper50 [21]
The question is simply asking to convert from units of mass to units of moles. To do this, a conversion factor is needed. For this case, we use the molar mass of glucose which is equal to 180.18 g/mol. We do as follows:

134 g C6H12O6 ( 1 mol / 180.18 g ) = 0.744 mol <span>C6H12O6</span>
5 0
4 years ago
Help! help! plz give 4 different between orbit and orbital​
Gemiola [76]

Answer:

Differences between Orbit and Orbitals

Orbit

An orbit is the simple planar representation of an electron.

It can be simply defined as the path that gets established in a circular motion by revolving the electron around the nucleus

The shape of molecules cannot be explained by an orbit as they are non-directional by nature.

An orbit that is well-defined goes against the Heisenberg principle.

Orbital

An orbital refers to the dimensional motion of an electron around the nucleus in a three-dimensional motion.

An orbital can simply be defined as the space or the region where the electron is likely to be found the most.

The shapes of the molecules can be found out as they are directional by nature.

An ideal orbital agrees with the theory of Heisenberg’s Principles.

3 0
3 years ago
The structure of the Earth is divided into four major components: the crust, the mantle, the outer core, and the inner core.
SSSSS [86.1K]
It is true, they are the 4 main layers.
3 0
3 years ago
Other questions:
  • If a calcium atom came near a sulfur atom, the calcium could transfer two of its ________ to the sulfur atom.
    7·1 answer
  • The effectiveness of a chemical sanitizer can be limited by
    15·1 answer
  • What was the advantageous adaptation mentioned that humans have evolved in order to survive
    15·1 answer
  • you see a coin at the bottom of a fountain of water but when you reach for it it is in another place than it appears to be
    11·1 answer
  • 10. How many grams of NH, are present in 6 moles<br>of NH,?​
    13·1 answer
  • Only need help with Bottom part
    5·1 answer
  • What does a reaction energy diagram represent ?
    8·1 answer
  • The reaction where sodium (Na) reacts with water to produce hydrogen gas is a type of reaction.
    8·1 answer
  • The melting of ice is considered a physical change because:
    8·1 answer
  • What is the best definition of weight​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!