Answer: 3.5 moles of hydrogen gas will be produced.
Explanation:
The balanced chemical equation is:
As HCl gets completely used up, 
is the limiting reagent.
According to stoichiometry :
6 moles of produces = 3 moles of 
Thus 7.0 moles of produces=
of
Thus 3.5 moles of hydrogen gas will be produced.
As you increase the chain of a alcohol, the reactivity decreases. This is due to an increase in disorder and decrease in intermolecular attraction between molecules.
Answer:
8. A golf ball feels heavier than a table-tennis ball because a golf ball is denser; that is, it has more mass in a similar volume.
10.
The density of the unknown substance is 10.50 g/mL. According to the table, the substance that has the same amount of density is silver. Therefore, the unknown substance is silver.
Explanation:
I'll leave the rest to other people
The law of conservation of mass states that mass is an isolated system and is neither created nor destroyed.
Applying this concept on a chemical reaction means that the total mass of reactants should be equal to the total mass of the products.
In this question, we have gasoline and oxygen as reactants and we have carbon dioxide and water as products.
Based on the law, the sum of the masses of oxygen and gasoline is equal to the sum of masses of carbon dioxide and water.
Therefore,
mass of carbon dioxide and water = 22 + 86 = 108 kg
PH is a measure of hydrogen(colorless, odorless) concentration of solutions. Ph is in solutions for an example like spray to clean the kitchen counter or table.These things have color and are odorless after a while.
