Complete the equation for the neutralization reaction between HCl and Mg(OH)2

In the balanced equation , CS2 + 3O2 = CO2 + 2SO2 , how many mol of O2 would react with 34.5 mol of CO2?

Arada [10]

Given:

Moles of CS2 (it cannot be CO2 as mentioned in the question, since O2 reacts with CS2 and not CO2) = 34.5 mol

To determine:

Moles of O2 undergoing the reaction

Explanation:

The reaction is-

CS2 + 3O2 → CO2 + 2SO2

Based on the stoichiometry: 3 moles of O2 reacts with 1 mole of CS2

therefore the moles of O2 that would combine with 34.5 moles of CS2 are

= 3 moles O2 * 34.5 moles CS2/1 mole CS2 = 103.5 moles

Ans: Around 104 moles of O2 would react with 34.5 moles of CS2

8 0

3 years ago

Read 2 more answers

As much as 25 percent of the fruits and vegetables grown in Chinese agricultural regions rot before they can be transported the

gulaghasi [49]

C. Developing effective methods of food preservation

Explanation:

The development of effective methods of food preservation is a much more smaller and manageable problem that contributes to the complex problem.

The percentage of food rotting is not as a result of lack of an effective preservation technique as highlighted in the passage. It is due to the long distances of agricultural area from where the farms are located.

To cut the loss, efficient and rapid transportation techniques needs to be put in place to carry the fruits and vegetables to the area where they are needed.
This is the most complex problem that if solved can peg back food rot.
Additional measures should be put in place to preserve the food.

Other options does not address the subject matter

learn more:

Preservation brainly.com/question/4853419

#learnwithBrainly

7 0

3 years ago

Predict the bond present between carbon and hydrogen in polyethylene

sweet-ann [11.9K]

It is an alkene: CnH2n (n=number of the atoms of carbon)
in ethylene there are two carbons so:
C2H4 just like the picture

6 0

4 years ago

1. A weather balloon is filled with helium on a cool morning when the temperature is 13.0°C. The temperature is predicted to rea

azamat

Answer:

Number of moles: n = 1.29 moles

If the temperature reaches 35°C which is 308.15 K the balloon will burst

Explanation:

Using the formula: PV = nRT

Where P is pressure in atm, V is volume in L, n is the number of moles, R is the gas constant which can be 8.314 J/mol K or 0.08206 atm L/mol K, and T is temperature in K.

In order to know which R to use, just take a look at the units. If you are given the pressure in atm, then use 0.08206 atm L/mol K. If you are given energy in Joules instead, then use 8.314 J/mol K.

Problem solution:

1 atm = 101.325 kPa, so 238 kPa is equal to 2.349 atm

1°C is 274.15 K, so 13°C is 286.15 k

Using the formula PV = nRT

2.349 atm * 12.9 L = n * 0.08206 atm L/mol K * 286.15 k

n = (30.302 atm L) / (23.481 atm L/mol)

n = 1.29 moles

If the temperature reaches 35°C which is 308.15 K the balloon will burst:

P = nRT/V

P = (1.29 moles * 0.08206 atm L/mol K * 308.15 k) / 12.9 L

P = 2.529 atm = 256.21 kPa

4 0

3 years ago

The isotope of an unknown element, X, has a mass number of 79. The most stable ion of this isotope has 36 electrons and has a 22

Tema [17]

Answer:

A) False

B) True

C) True

D) True

Explanation:

A) False. If the charge of the atom is +2 means that you have two protons more than number of electrons. If you have 36 electrons you must have 38 protons. Also, the electrons are not in the nucleus.

B) True. The isotope of X contains 38 protons, two more than the electron number.

C) True. The mass number is the number of protons + number of neutrons.

If the mass number is 79 and there are 38 protons you must have 41 neutrons.

D) True. You can now the identity of the atom with the number of protons that is the same than atomic number. The strontium, Sr, is the atom with 38 as atomic number.

I hope it helps!

3 0

3 years ago