Chemistry, 10.01.2020 22:31 briweaver9993
The molecular mass of air, at standard pressure and temperature, is approximately 28.97 g/mol. calculate the mass of 3.33 moles of air. next, cancel like terms and units. which of the following shows the correct terms and units canceled?
a> n> s: 2nd choice
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, 22.06.2019 20:20, Matseleng3775
The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.
Answers: 1
The molecular mass of air, at standard pressure and temperature, is approximately 28.97 g/mol. calcu...
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