Chemistry, 30.06.2021 01:20 samjohnson3637
he specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The heat capacity of a certain substance has been measured to be
Answers: 2
Chemistry, 21.06.2019 20:00
Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?
Answers: 1
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 12:30
Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
Answers: 3
Chemistry, 22.06.2019 14:30
According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.
Answers: 1
he specific heat capacity of a pure substance can be found by dividing the heat needed to change the...
Mathematics, 04.12.2020 20:20
Mathematics, 04.12.2020 20:20
Social Studies, 04.12.2020 20:20
Mathematics, 04.12.2020 20:20
Social Studies, 04.12.2020 20:20
English, 04.12.2020 20:20
Mathematics, 04.12.2020 20:20
Computers and Technology, 04.12.2020 20:20
Mathematics, 04.12.2020 20:20
English, 04.12.2020 20:20
English, 04.12.2020 20:20
Mathematics, 04.12.2020 20:20