Answers: 2
Chemistry, 23.06.2019 03:00
Describe the properties of sodium, chlorine, and sodium chloride
Answers: 1
Chemistry, 23.06.2019 06:50
The student repeated the experiment using a higher concentration of acid. the same volume of acid and the same mass of magnesium ribbon were used. what volume of hydrogen gas would have been produced after 60 seconds?
Answers: 1
Chemistry, 23.06.2019 09:30
What is the force of an object when it landed(sitting in the ground)
Answers: 2
Chemistry, 23.06.2019 13:30
The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)→h2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 °c .) what mass of hydrogen gas is collected? answer in appropriate significant figures
Answers: 3
What is an example of a cold current...
Mathematics, 25.05.2021 02:20
Mathematics, 25.05.2021 02:20
Mathematics, 25.05.2021 02:20
Mathematics, 25.05.2021 02:20
Biology, 25.05.2021 02:20
Biology, 25.05.2021 02:20
History, 25.05.2021 02:20
Mathematics, 25.05.2021 02:20
Chemistry, 25.05.2021 02:20
Social Studies, 25.05.2021 02:20
Biology, 25.05.2021 02:20
Mathematics, 25.05.2021 02:20