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
8090 [49]
2 years ago
9

The heat of vaporization of an unknown liquid is 1,340 Joules per gram. What is the minimum number of Joules needed to change 20

.0 grams of the liquid to vapor at the boiling point?
Chemistry
1 answer:
Fed [463]2 years ago
7 0

Answer:

The temperature of a boiling liquid remains constant until all of the liquid has been converted to a gas.For example, the amount of heat necessary to change one gram of water to steam at its boiling point at one atmosphere of pressure,  the heat of vaporization of water, is approximately 540 calories.

Explanation:

You might be interested in
QUICK 34PTS AND IF RIGHT YOU WILL GET BRAINLEST
bazaltina [42]

Answer:

1-b 2-a

Explanation:

3 0
3 years ago
Experiment on distillation
Temka [501]

Answer:

ok.. what is your question??? confused

4 0
2 years ago
"benzyl ethyl ether reacts with concentrated aqueous hi to form two initial organic products (a and b). further reaction of prod
ahrayia [7]

Answer:

See below.  

Step-by-step explanation:

Ethers react with HI at high temperature to produce an alky halide and an alcohol.

R-OR' + HI ⟶ R-I + H-OR'

<em>Benzylic ethers</em> react by an Sₙ1 mechanism by forming the stable benzyl cation.

  1. PhCH₂-OR + HI ⟶ PhCH₂-O⁺(H)R + I⁻    Protonation of the ether
  2. PhCH₂-O⁺(H)R  ⟶ PhCH₂⁺ + HOR          Sₙ1 ionization of oxonium ion
  3. PhCH₂⁺ + I⁻       ⟶ PhCH₂-I                     Nucleophilic attack by I⁻  

If there is excess HI, the alcohol formed in Step 2 is also converted to an alkyl iodide:

ROH +HI ⟶ R-I + H-OH

Thus, benzyl ethyl ether reacts to form benzyl iodide (a) and ethanol (b).

The ethanol reacts with excess HI in an Sₙ2 reaction to form ethyl iodide (c).

4 0
3 years ago
Which substance can be decomposed by a chemical change?
Sliva [168]

Answer:

It could be C. Calcuim Chloride.

Explanation:

7 0
3 years ago
Why are redox reactions used in batteries?
Phoenix [80]

Answer:

Why are redox reactions used in batteries? The attraction between charged ions releases energy. The movement of electrons creates an electric current. The reactions are extremely exothermic, producing an electric current.

Explanation:

Why are redox reactions used in batteries?

The attraction between charged ions releases energy.

The movement of electrons creates an electric current.

The reactions are extremely exothermic, producing an electric current.

The reactions are extremely endothermic, inducing the movement of electrons.

5 0
3 years ago
Other questions:
  • Sirius, the brightest star, is 8.8 light-years from Earth. That means
    10·1 answer
  • Use the periodic table or graphic in lesson. Choose the correct electron configuration of carbon. 1s22s22p1 1s22s22p4 1s22s22p2
    12·2 answers
  • What do all properties of matter have in common
    15·2 answers
  • Which formula represents a polar molecule
    11·1 answer
  • A student designed an experiment to test
    14·1 answer
  • Cells are differentiated when
    14·1 answer
  • Match the change to its definition.
    15·1 answer
  • Consider two solutions separated by a semipermeable membrane, as shown in the illustration to the right. The membrane allows the
    8·1 answer
  • Help with this question
    5·1 answer
  • 1. Currently, California students are in class 240 minutes every day. How many hours is this?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!