What is the density of the substance of it has a volume of 25ml and mass of 20.5g ?
...
Answers: 2
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 00:00, PlzNoToxicBan
What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 lĀ·atm/molĀ·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm
Answers: 1
Mathematics, 30.04.2021 19:40
Chemistry, 30.04.2021 19:40