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zavuch27 [327]
3 years ago
9

Which of the following molecules contains only single bonds?

Chemistry
2 answers:
WARRIOR [948]3 years ago
8 0

Answer:

D

Explanation:

PtichkaEL [24]3 years ago
8 0

Answer:

The correct answer is option (D) C2H6

Explanation:

Hello!

Let's solve this!

Let's analyze each of the compounds:

(A) CH3 CH2 COOH: At the end of the molecule, -COOH there is a double bond. (Part of the carboxylic acid)

(B) CH3COCH3: there is a double bond in the oxygen part.

(C) HCN: there are double bonds.

(D) C2H6: there are only simple links.

(E) CO2: there are double bonds.

After the analysis we conclude that the correct answer is option (D) C2H6

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How many grams of Fe can be produced when 5.50 g of Fe2O3 reacts?
vichka [17]

Answer:

3,85 g of Fe

Explanation:

1- The first thing to do is calculate the molar mass of the Fe2O3 compound. With the help of a periodic table, the weights of the atoms are searched, and the sum is made:

Molar mass of Fe2O3 = (2 x mass of Fe) + (3 x mass of O) = 2 x 55.88 g + 3 x 15.99 g = 159.65 g / mol

Then, one mole of Fe2O3 has a mass of 159.65 grams.

2- Then, the relationship between the Fe2O3 that will react and the iron to be produced. With the previous calculation, we can say that with one mole of Fe2O3, two moles of Fe can be produced. Passing this relationship to the molar masses, it would be as follows:

1 mole of Fe2O3_____ 2 moles of Fe

159.65 g of Fe2O3_____ 111.76 g of Fe

3- Finally, the calculation of the mass that can be produced of Fe is made, starting from 5.50 g of Fe2O3

159.65 g of Fe2O3 _____ 111.76 g of Fe

5.50 g of Fe2O3 ______ X = 3.85 g of Fe

<em>Calculation: 5.50 g x 111.76 g / 159.65 g = 3.85 g </em>

The answer is that 3.85 g of Fe can be produced when 5.50 g of Fe2O3 react

7 0
3 years ago
Which statement best compares a gamma ray to a radio wave?
VLD [36.1K]

Answer:

Explanation:The only difference between these different types of radiation is their wavelength or frequency. Wavelength increases and frequency (as well as energy and temperature) decreases from gamma rays to radio waves.

4 0
3 years ago
How do you obtain oxide from a mixture?
emmainna [20.7K]

By direct heating of an element with oxygen : many metals and non-. metals burn rapidly when heated in oxygen or air producing their oxides e.g.

3 0
3 years ago
What would happen to the moon’s interia were to increase? A the moon will fly into space. B the moon will smash into Earth. C th
Montano1993 [528]

Answer:

B

Explanation:

5 0
3 years ago
Aluminium is a metal give reason​
trapecia [35]

Answer:

Aluminium is ordinarily classified as a metal. It is lustrous, malleable and ductile, and has high electrical and thermal conductivity. Like most metals, it has a close-packed crystalline structure and forms a cation in an aqueous solution.

7 0
3 years ago
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