Will mark what volume will water vapor form when 40 liters of hydrogen completely reacts with 25 liters of oxygen? assume the temperature and pressure remains constant.

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40 liters

Explanation:

The equation for this specific type of question is: 2H2 + O2 = 2H2O

Your given the number 40(Liters of Hydrogen) and the number 25(Liters of Oxygen) so you replace that 2H with the 40H you are provided, 40 L H2, Then you take the 25 L, and you dont have all 50 L of H2, and if you use the 40 L provided, the whole amount of H2 is used, prior to the O2.

This all equates to this equation:

40 L H2 x (2 vol H2O / 2 vol H2)  = 40 L H2O

So all this leaves you with 40 Liters which is the volume of the water vapor

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any far is the region can control the climate

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance