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
mixas84 [53]
3 years ago
10

3. Determine the enthalpy of formation for propane. 3C(s, gr) + 4H2(g) ---> C3H2(g) CzH3(g) AH = -2219.9 kJ C(s, gr) AH = -39

3.5 kJ H,(g) AH = -285.8 kJ a. -205.7 /mol b. -103.8 kJ/mol Å C. + 205.7 /mol d. + 103.8 /mol​

Chemistry
1 answer:
Mars2501 [29]3 years ago
7 0

Answer:

b I hope this is right good luck

You might be interested in
This feature of a volcano is called an____________________which releases heated ash and Tephra through its column generating its
trapecia [35]

Answer:

Volcanic Eruption releases heated ash and Tephra through its column generating its own lightning.

Hope it helps!<3

7 0
3 years ago
The electrolyte of the following is:
ozzi
An electrolyte is a term used to describe a compound that can dissociate into ions as it is nothing but an ionic compound, a salt made up of a positively charged cation and negatively charged anion.

Here the correct answer is D. Since there are no hydrocarbons or any other organic compound, that do not possess partial let alone full charges, all of them can dissociate in solution to give their ions.

This allows for the solution to be able to conduct electricity.
4 0
2 years ago
The element copper has naturally occurring isotopes with mass numbers of 63 and 65. The relative abundance and atomic masses are
timofeeve [1]

Answer:

63.546

Explanation:

The Average atomic mass is calculated using the formula:

sum of the product of the atomic masses and their relative abundances all divided by 100 or total abundance

4 0
3 years ago
50 Points: What is the mass of 6.12 moles of arsenic (As)?
ozzi

The mass of 6.12 moles of arsenic (As) is calculated to be approximately 459g.

HOW TO CALCULATE MASS:

The mass of a substance can be calculated by multiplying the number of moles of a substance by its molar mass. That is;

Mass of Arsenic = no. of moles of As × molar mass of As.

According to this question, 6.12 moles of arsenic was given and its molar mass is 74.92g/mol.

Mass of As = 6.12 mol × 74.92g/mol

Mass of As = 459g

Therefore, the mass of 6.12 moles of arsenic (As) is calculated to be approximately 459g.

Learn more about mass calculations at: brainly.com/question/8101390

4 0
2 years ago
Equal volumes of H2 and o2 are placed in a balloon and then ignited. Assuming that the reaction goes to completion, which gas wi
Anastasy [175]
You will have excess O2. The ideal gas law dictates that all other variables kept the same, equal volume means equal number of moles.
7 0
3 years ago
Read 2 more answers
Other questions:
  • COMPARE AND CONTRAST <br> PROPANE AND HEXANE ...?
    15·1 answer
  • Determine whether each molecule is polar or nonpolar.
    13·1 answer
  • What is how fast an objects speed is changing?
    9·1 answer
  • Rowena and helga are both performing an experiment with nickel metal. Rowena has a 5 gram sample and determines the density to b
    15·1 answer
  • Calculate the amount of heat energy, in kJ, needed to increase the temperature of 200g of water by 300 C.
    15·1 answer
  • What is the difference between ionic and covalent compounds?
    12·1 answer
  • The lowest whole-number ratio of elements in a compound is called the ?
    8·1 answer
  • Co2(g)+H20+148Kcal----&gt;H2Co3 Endotérmica o exotérmica
    8·1 answer
  • What physical and chemical properties should braces (used to straighten teeth possess in order to attain its desired goal to str
    9·1 answer
  • 30 points! pls help me! (question is in image) explanation needed!!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!