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
Whitepunk [10]
2 years ago
6

Which expression gives the standard enthalpy change of formation for methanol?

Chemistry
1 answer:
ser-zykov [4K]2 years ago
6 0

Answer:

25

Explanation:

bec

You might be interested in
Yami pours powdered cocoa mix into milk and stirs it. Then she microwaves the mixture for three minutes. When she takes the cup
Katen [24]

Answer:

The correct answer is:

C. Rising steam from the cup of cocoa.

Rising steam from the cup of cocoa is the part of this scenario that convection can be best observed.

Explanation:

3 0
2 years ago
Read 2 more answers
49.Which of the following statements regarding chemical equilibrium is true?
crimeas [40]
A asystem at equilibrium stops
8 0
3 years ago
Write iupac name of :
Orlov [11]

A)Nitrogen (IV) oxide

B)propane

4 0
2 years ago
?
sashaice [31]
I think it's DNA forms a double helix and RNA consists a single strand.
I may be wrong...
3 0
3 years ago
Read 2 more answers
You weigh out 0.1183 g of a complex salt to analyze for the percentage of cyanide ion in your complex salt. After dissolving the
Stels [109]

Answer:

25.35%

Explanation:

Again let me restate the the equation of the reaction;

H2O (ℓ) + 2 MnO4 - (aq) + 3 CN- (aq) → 2 MnO2 (s) + 3 CNO- (aq) + 2 OH- (aq)

Amount of potassium permanganate  reacted = 10.2/1000 * 0.08035 = 8.1957 * 10^-4 moles

If 2 moles of MnO4 - reacts with 3 moles of CN-

8.1957 * 10^-4 moles of MnO4 - reacts with 8.1957 * 10^-4 * 3/2

= 1.229 * 10^-3 moles of CN-

Mass of CN- reacted = 1.229 * 10^-3 moles of CN- * 26.02 g/mol

= 0.03 g

Hence, percentage of the cyanide = 0.03 g/0.1183 g * 100

= 25.35%

8 0
3 years ago
Other questions:
  • Although the nucleus of an atom is very important, it is the ___ of the atom that determine its chemical properties
    11·1 answer
  • What is the mass of 0.50 moles of Na? 11 grams 46 grams 3.0 × 1023 grams 6.0 × 1023 grams
    11·2 answers
  • Which substance is a gas at room temperature and atmospheric pressure?
    14·1 answer
  • Calculate the mass number of an atom that has 92 protons and 108 neutrons
    14·1 answer
  • What volume does 4.24g of argon gas occupy at 58.2 degrees celcuis and 1528torr
    7·1 answer
  • Why is hydrogen chloride (HCl) polar?
    14·2 answers
  • What new characteristic did John Dalton add to the model of the atom?
    6·2 answers
  • PLS HELP ASAP i really need an answer a correct one
    12·1 answer
  • It takes 93.75 mL of a 0.200 M NaOH to neutralize 75.0 mL of an unknown
    7·1 answer
  • Which of the following is a stock exchange in the United States?(1 point)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!