The student originally has 252 grams of water in this experiment.
LAW OF CONSERVATION OF MASS:
- The law of conservation of mass explains that matter (mass) can neither be created nor destroyed but can be changed from one form to another.
- This means that in a chemical reaction, the sum of the masses of the reactants must equate to the total mass of product(s).
- According to this question, a student conducts an experiment to separate water into hydrogen and oxygen. The student collects 28.0 g of hydrogen and 224.0 g of oxygen.
- Since hydrogen and oxygen are the constituent elements of water, the sum of their masses must equate the mass of water.
- Therefore, 224g of oxygen + 28g of hydrogen = 252g of water.
Learn more at: brainly.com/question/24996173?referrer=searchResults
Paint changes color to the physical eye.
I would say that the reign of terror was justified because they had to strike fear in people in order to get control and they did that by executing people via guillotine
Another reason i would say that it is justified is that they had to stop the people that where supporting the revolution or the revolution would not be successful
The last reason I would say its justified is that they had to fight to get there rights and they had to fight to get they changes they needed<span />
Answer:
Ch4 G +2o2 g co2 G +2h2o g How many moles of methane are required to produce 22 g co2 G after combustion
Explanation:
it's 22 grams..
hope the answer was helpful ....