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arsen [322]
1 year ago
5

Which of the following are examples of useful hydrocarbons?

Chemistry
1 answer:
kari74 [83]1 year ago
7 0

Answer:

the most useful hydrocarbon is fuel.

Explanation:

some examples like: natural gases,coal,diesel fuel, kerosene etc.

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Examine this reaction:
Alina [70]

Answer:

The normal amount of disaccharide would be produced, but fewer monosaccharides would be produced.

Explanation:

The first reaction, the conversion of starch into disaccharides, is catalyzed by the enzyme amylase. <u>Since amylase is present in a normal amount, a normal amount of disaccharides will be produced.</u>

In the second reaction, these disaccharides will be transformed into monosaccharides by a disaccharidase. However, since t<u>here is less disaccharidase, there will be fewer monosaccharides produced than if it was a normal amount of amylase.</u>

8 0
3 years ago
Give the systematic name for the compound Ni2(SO4)3
Yanka [14]
Ni = Nickel
SO4 = Sulphate
2 and 3 in the sub-script are the charges.
So , its name is NICKEL SULPHATE
5 0
3 years ago
Emma has 37 green apples and 15 red apples. What is the ratio of red apples to green apples?
sp2606 [1]

Answer:

15:37

Explanation:

cant simplify because 37 is prime

3 0
3 years ago
A gas cylinder contains 2.0 mol of gas X and 6.0 mol of gas Y at a total pressure of 2.1 atm. What is the partial pressure of ga
vivado [14]

Answer :  The partial pressure of X and Y gases are, 0.525 and 1.575 atm respectively.

Explanation : Given,

Moles of X = 2.0 mole

Moles of Y = 6.0 mole

Total pressure = 2.1 atm

Now we have to calculate the mole fraction of X and Y.

\text{Mole fraction of }X=\frac{\text{Moles of }X}{\text{Moles of }X+\text{Moles of }Y}

\text{Mole fraction of }X=\frac{2.0}{2.0+6.0}=0.25

and,

\text{Mole fraction of }Y=\frac{\text{Moles of }Y}{\text{Moles of }X+\text{Moles of }Y}

\text{Mole fraction of }Y=\frac{6.0}{2.0+6.0}=0.75

Now we have to calculate the partial pressure of X and Y.

According to the Raoult's law,

p_i=X_i\times p_T

where,

p_i = partial pressure of gas

p_T = total pressure of gas  = 2.1 atm

X_i = mole fraction of gas

p_{X}=X_{(X)}\times p_T

p_{X}=0.25\times 2.1atm=0.525atm

and,

p_{Y}=X_{(Y)}\times p_T

p_{Y}=0.75\times 2.1atm=1.575atm

Thus, the partial pressure of X and Y gases are, 0.525 and 1.575 atm respectively.

4 0
3 years ago
Read 2 more answers
A student places a 12-gram cube of ice inside a container. After six hours, the student returns to observe the contents of the c
Gennadij [26K]

Answer:- C. The container contains 8 grams of liquid water and no ice.

Explanations:- In thermodynamics, "An open system is the one that exchanges energy and matter with it's surroundings."

If we look at all the choices then the total mass is 12 grams except for choice C. So, the correct choice is C as the mass in the container remains 8 grams since some of the amount is lost to the surroundings in the form of water vapors.

4 0
3 years ago
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