Chemistry, 09.12.2019 23:31 eddsworldfrantic

If the density of copper is 8.9g/cm^3 and the volume of the sample is 23.4 ml what would be the mass?

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 17:00, Luzperez09

Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?

Answers: 1

continue

Chemistry, 21.06.2019 20:30, nmadrigal

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

Answers: 2

continue

Chemistry, 22.06.2019 03:50, daniel9299

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Answers: 3

continue

Chemistry, 22.06.2019 14:00, MathChic68