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
Nostrana [21]
3 years ago
7

Which has a higher melting point KF or KI?

Chemistry
1 answer:
NeX [460]3 years ago
5 0

Answer:

kf

Explanation:

You might be interested in
Consider the cell pt | h2 (1 atm); h+ (? m) || hg2cl2(s); cl− (1 m) | hg 2 h+ + 2 e − → h2 e 0 = 0.00 v hg2cl2 + 2 e − → 2 hg +
Dmitry [639]

Answer:

1.39

Explanation:

[Hg2Cl2]= 1M

[H^+] = ????

E°cell= 0.35V

E= 0.268 V

Therefore E for the reaction must -0.082 V

n= 2 moles of electrons

From Nernst Equation:

E= E°cell- 0.0592/n log [Red]/[Ox]

0.0268= 0.35- 0.0592/2 log 1/[Ox]^2

-0.082= -0.0296 log 1/[Ox]^2

log 1/[Ox]^2= 0.082/0.0296

log 1/[Ox]^2= 2.77

1/[Ox]^2=Antilog (2.77)

[Ox]^2=1.698×10^-3

[Ox] = 0.0412 M

But pH= -log [H^+]= -log(0.0412)= 1.385

3 0
3 years ago
Read 2 more answers
What chemicals would be needed to create a mint that actually cleaned teeth while offering flavors and consumable chemicals? I'd
amid [387]

Answer:

ddddddddddddddddddddddddddddddddddddddddddddddddd

Explanation:

5 0
3 years ago
How adding tin to copper makes the bronze alloy harder?
andrey2020 [161]
It makes the bronze stronger and harder than either of the other two medals
8 0
3 years ago
Read 2 more answers
Choose all the answers that apply.
BARSIC [14]

Answer:

A C and D hope this helps

Explanation:

3 0
3 years ago
Could someone help me with this?
Varvara68 [4.7K]

Solving part-1 only

#1

KMnO_4

  • Transition metal is Manganese (Mn)

#2

Actually it's the oxidation number of Mn

Let's find how?

\\ \tt\Rrightarrow x+1+4(-2)=0

\\ \tt\Rrightarrow x+1-8=0

\\ \tt\Rrightarrow x-7=0

\\ \tt\Rrightarrow x=+7

  • x is the oxidation number

#3

  • Purple as per the color of potassium permanganate

#4

\boxed{\begin{array}{c|c|c}\boxed{\bf Tube} &\boxed{\bf Charge} &\boxed{\bf No\:of\; electrons\: loss}\\ \sf 2 &\sf +6 &\sf 6e^-\\ \sf 3& \sf +2 &\sf 2e- \\ \sf 4 &\sf 4 &\sf 4e^-\end{array}}

7 0
2 years ago
Other questions:
  • How many molecules of carbon monoxide (co) are needed to react with excess iron (iii) oxide (fe2o3) to produce 11.6 g of iron (f
    10·1 answer
  • Heat is thermal energy transferred from one object to another because of a difference in
    7·1 answer
  • What is the noble-gas electron configuration for bromine?
    12·1 answer
  • What is The strength of a hurricane is ranked from 1 to 5 on the _________________.
    7·1 answer
  • All of the atoms of argon have the same?
    13·2 answers
  • A proton is fired toward a lead nucleus from very far away. How much initial kinetic energy does the proton need to reach a turn
    7·1 answer
  • What is the minimum mass of 25°c water required to melt all 35.1 g of ice?
    15·1 answer
  • What is the number of protons in this carbon atom? 12 6 18 24
    15·2 answers
  • What is responsible for the whistling sound that often accompanies fireworks?
    6·1 answer
  • How did scientists find out about atoms before technology?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!