CHEMISTRY HIGH SCHOOL

the molar mass off O2 is 32.0 g/mol. what mass in tye grams of 02 is Required to react completely with 4.00 mol mg

Answers

Answer 1
Answer:

The balanced reaction is: 

2Mg + O2 = 2MgO 

We are given the amount of  magnesium to be reacted with O2. This will be the starting point of the calculations.

 

4.00 g C3H8 ( 1 mol Mg/ 24.31 g Mg ) ( 1 mol O2 / 2 mol Mg ) ( 32.0 g O2 / 1 mol O2 ) = 2.63 g O2
Answer 2
Answer:

Answer:

64.0 grams!

Explanation:

Use the mole ratios

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Answers

Answer:

Explanation:

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Answers

C. ) Negative Delta G is the answer that describes a spontaneous reaction
The answer is D
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There are gps satellities orbiting the earth a) 28
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Answers

The GPS or global positioning system is a satellite – based navigation system made up of a network of 24 satellites placed into orbit by the US Department of Defense. It was originally intended for military applications but later one, it made available for civilian use. It works in any weather conditions, anywhere in the world for 24 hours a day.

The water in a 150-mL flask is poured into a beaker that contains 600 mL of ethyl alcohol. Which substance is the solvent in this mixture?

Answers

Answer:

Ethyl alcohol is a solvent on the mixture.

Explanation:

Solution: It is a mixture of liquid in which solute (minor component) is distributed uniformly in a solvent (major component).

In a solution, mass of solute is always less than the mass of solvent.

Mass of water = 150 mL

Mass of ethyl alcohol = 600 mL

Mass of water < Mass of ethyl alcohol

Ethyl alcohol is a solvent on the mixture.
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Answers

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Dole

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Answers

Density is the amount of matter in an object so having it any way submerged in water will not affect the solid's density
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