Chemistry, 05.12.2019 17:31, zakariaaap1
The rate of effusion of an unknown gas was measured and found to be 55.4 ml/min. under the same conditions, the rate of effusion of o2 is found to be 51.8 ml/min. which of the following could be the unknown gas? n2
co
n2o
c2h2
none of these
Answers: 3
Chemistry, 22.06.2019 10:00, 2019reynolds
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 23.06.2019 06:50, isabellainksow87vn
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
The rate of effusion of an unknown gas was measured and found to be 55.4 ml/min. under the same cond...
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