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
zhuklara [117]
3 years ago
5

Calculate the amount of heat needed to evaporate 235.0 grams of water from 25.0°C to 100.0°C.

Chemistry
1 answer:
steposvetlana [31]3 years ago
6 0
I hope this helps answer your question. :)

These problems are very hard to do digitally so I would recommend trying to practice these types of problems on paper :)

You might be interested in
What is the molarity of a solution with 130g of CoCl2 in 1/2 liter? (can you show the steps please)
Elden [556K]

Answer:

2M

Explanation:

M=mol/L

1. Find moles of CoCl2

mass of substance/molar mass = 130/129.833 = 1.001 mol

3. Substitute in molarity equation

M=(1.001/0.5)

M= around 2M

7 0
2 years ago
A neutral group of atoms joined together by covalent bonds
katrin [286]
A MOLECULE
A molecule is a true representative of a covalent bond.
7 0
2 years ago
a que grupo en la tabla periodica pertenece el magnesio, potasio, calcio, azufre, oxigeno y el cloro?
ladessa [460]

Answer:

Group 2A — The Alkaline Earth Metals. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

Explanation:

4 0
3 years ago
How many moles are 21.67 L of NH4CI?
Gnoma [55]

Answer:

0.967mole

Explanation:

Given parameters:

Volume of NH₄Cl  = 21.67L

Unknown:

Number of moles  = ?

Solution:

If we assume that the volume was taken at standard temperature and pressure,

 Then;

  Number of moles  = \frac{volume }{22.4L}  

 Number of moles  = \frac{21.67}{22.4}   = 0.967mole

8 0
3 years ago
Explain the concept: Law of Multiple Proportions.<br> Short and simple please
cricket20 [7]
In chemistry the law of multiple proportions states that if two elements from more than one compound between them then the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers .
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which statements about viscosity are true? (i) viscosity increases as temperature decreases. (ii) viscosity increases as molecul
    8·2 answers
  • Why does the Zr4+ ion exist?
    11·2 answers
  • Use the periodic table to help you.
    7·2 answers
  • What is the pOH of a<br> 5.6 x 10-5 M solution of cesium<br> hydroxide (CsOH)?
    9·1 answer
  • 3. Make an argument for placing hydrogen in the halogen group rather than the alkali metals. 4. Compare and contrast ionization
    7·1 answer
  • The colder parts of the surface of Pluto have a temperature of –382°F. What is this temperature in Celsius?
    5·1 answer
  • How can u change cm to dm
    12·2 answers
  • Solve…………<br><br> 1.2 x.5392
    12·2 answers
  • What does refluxing a reaction mean in organic chemistry lab?
    7·1 answer
  • Choose the compound that is covalent.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!