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
erik [133]
3 years ago
10

PLEASE HELPPP ME

Chemistry
2 answers:
ahrayia [7]3 years ago
7 0

Answer:

1) (5 moles of calcium bromide) x 2 / 1 = 10 moles

2) (2.00 moles of calcium bromide) = 2.00 moles of calcium sulfate

so (2.00) x (136.1 g/mol) = 272.2 g

3) (845 grams of calcium sulfate) /  136.14 g/mol = 6.21 moles

6.21 moles of calcium sulfate = 6.21 moles of calcium bromide

(6.21 moles of calcium bromide) x 199.89 g/mol = 1241.32 g

klasskru [66]3 years ago
6 0
How many miles is in 2NA
You might be interested in
Order the terms according to the path followed by oxygen during cellular respiration.​
MArishka [77]

Answer:

Outside air

Nose

Lungs

Bloodstream

Cell

Explanation:

We breathe in oxygen from the outside air in through our nose and it travels to our lungs. Inside our lungs, we have Avioli's that diffuse oxygen into our bloodstream and the bloodstream helps the oxygen travel into our cells.

Hope this helps :)

8 0
3 years ago
Find δs∘ for the reaction between nitrogen gas and hydrogen gas to form ammonia:12n2(g) 32h2(g)→nh3(g)
Dima020 [189]

Nitrogen (N2) and hydrogen (H2) gases react to form ammonia, which requires -99.4 J/K of standard entropy (ΔS°).

What is standard entropy?

The difference between the total standard entropies of the reaction mixture and the summation of the standard entropies of the outputs is the standard entropy change. Each entropy in the balanced equation needs to be compounded by its coefficient, as shown by the letter "n."

Calculation:

Balancing the given reaction following-

1/2 N₂(g) + 3/2 H₂ (g)→ NH₃ (g)

ΔS° = [1 mol x S° (NH₃)g] - [1/2 mol x S° (N₂)g] - [3/2 mol x S°(H₂)g]

Here S° = standard entropy of the system

Insert into the aforementioned equation all the typical entropy values found in the literature:

ΔS° = [1 mol x 192.45 J/mol.K] - [1/2 mol x 191.61 J/mol.K] - [3/2 mol x 130.684 J/mol.K]

⇒ΔS° = - 99.4 J/K

Therefore, the standard entropy, ΔS° is -99.4 J/K.

Learn more about standard entropy here:

brainly.com/question/14356933

#SPJ4

5 0
1 year ago
Staples and metal shavings are examples of which type of hazards
asambeis [7]
They are examples of physical<span> contaminants .</span>
8 0
3 years ago
What is hydrocabron ​
navik [9.2K]

Answer:

Hydrocarbon is a Compound that is made up of Carbon and Hydrogen .

6 0
3 years ago
How many atoms are here in the following?
Elina [12.6K]

Answer:

A. 6N

B. 4H, 2O

C. 4H, 4N, 12O

D. 2Ca, 4O, 4H

E. 3Ba, 6Cl, 18O

F. 5Fe, 10N, 30O

G. 12Mg, 8P, 32O

H. 4N, 16H, 2S, 8O

I. 12Al, 18Se, 72O

J. 12C, 32H

I am 90% sure this is correct

6 0
3 years ago
Other questions:
  • Scientists discovered fossils in several layers of the Earth you see here. They found fossils of algae, snails, and clams in lay
    13·1 answer
  • Describe the process of inhalation and exhalation with regard to the contraction of the diaphragm – which is an active process a
    15·1 answer
  • What occurs when a gas is changed into a liquid
    13·1 answer
  • Place a check next to each elementary reaction
    7·1 answer
  • Which of the following statements is true about cellular respiration?
    9·2 answers
  • What mass of water will change its temperature by 3.00 °C when 595 J of heat is added to it? The specific heat of water is 4.2 J
    7·1 answer
  • What volume would 3 moles of hydrogen gas occupy at stp?
    10·1 answer
  • What happens to a substance when a physical change happens? (1 point) a A substance may change color or state. There is a new su
    15·1 answer
  • Light-dependent reactions: ​
    10·1 answer
  • Organic compounds and their uses​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!