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
Makovka662 [10]
3 years ago
6

A. 1720 kJ B. 125.6 kJ C. 3440 kJ D. 4730 kJ

Chemistry
1 answer:
Feliz [49]3 years ago
7 0

Answer:

Q = 3440Kj

Explanation:

Given data:

Mass of gold = 2kg

Latent heat of vaporization = 1720 Kj/Kg

Energy required to vaporize 2kg gold = ?

Solution:

Equation

Q= mLvap

It is given that heat required to vaporize the one kilogram gold is 1720 Kj thus, for 2 kg

by putting values,

Q= 2kg ×  1720 Kj/Kg

Q = 3440Kj

You might be interested in
What are the classes of alkanol
LuckyWell [14K]
1-PRIMARY ALKANOL 2-SECONDARY ALKANOL 3-TERTIARY ALKANOL
8 0
3 years ago
According the the arrhenius theory, which species does an acid produce in an aqueous solution?
4vir4ik [10]
Note: Above question is incomplete: Complete question is read as 
<span>According the the arrhenius theory, which species does an acid produce in an aqueous solution?
</span>A) hydrogen ions B) hydroxyl ions C) Sodium ions D) Chloride ion
.....................................................................................................................
Correct answer for above question is A) Hydrogen ions

Reason:
According the Arrhenius theory of acid and base, acid generates hydrogen ions in aqueous medium, while bases generates hydroxyl ions in aqueous medium.  
Example of Acid:
HCl(aq)          →          H+(aq)    + Cl-(aq)

Example of Base:
NaOH(aq)           →          Na+(aq)       +     OH-(aq)


6 0
3 years ago
Which of the following diagrams correctly shows the reaction pathway of a reaction that releases energy ?
zavuch27 [327]
The answer is diagram A.

Hope this helped. Good luck!
3 0
3 years ago
Read 2 more answers
Which statement about the greenhouse effect is NOT true?
Archy [21]
<span> Greenhouse gases were not historically present in the atmosphere.</span>
7 0
3 years ago
Identify the half reaction as oxidation or reduction.
topjm [15]
OILRIG:
Oxidation is loss (of electrons)
Reduction is gain (of electrons)
so...
The first one is an oxidation half-equation as the Sn loses electrons;
The second one is a reduction half-equation as the Cl₂ gains electrons
8 0
3 years ago
Other questions:
  • The glow emitted by a substance exposed to external radiation is called
    12·1 answer
  • What does it mean for an object to be dense?
    7·1 answer
  • How much 6.0 M HNO3 is needed to neutralize 39 mL of 2.0 M KOH?
    6·2 answers
  • How many millimeters are equal to 0.399195L
    5·1 answer
  • PLEZ HELP QUICKLY!!!! ILL MARK BRAINLIEST
    10·2 answers
  • What is the mass of 2 moles of 238U?
    11·1 answer
  • If 0.500 mol of acetylene is allowed to completely react with oxygen, what is the final yield of CO2 in moles?
    8·1 answer
  • __H₂ + __ O₂ → __ H₂O What type of reaction is above:
    12·1 answer
  • Do you think the ingredients changing into a cake
    14·1 answer
  • What chemical bond does dinitrogen pentachloride have
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!