Pl answerrr If 5.00L of hydrogen gas, measured at 20.0⁰C and 80.1 kPa is burned in excess oxygen to form water, what mass of oxygen (measured at the same temp and pressure) will be consumed? 2 H₂ + O₂ 2 H₂O *

16.0 g
2.63 g
32.0 g
4.63 g

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

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