Chemistry, 12.10.2019 23:30 gyliahicks
In a certain chemical reaction, 297 g of zinc chloride was produced from the single replacement reaction of excess zinc and 202.7 g of lithium chloride. what is the percent yield of zinc chloride?
Answers: 2
Chemistry, 21.06.2019 20:30
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
Chemistry, 21.06.2019 21:30
Which is the layer underground where all empty spaces are filled with a combination of air and water ?
Answers: 1
Chemistry, 22.06.2019 05:50
Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4
Answers: 1
Chemistry, 22.06.2019 11:50
If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.
Answers: 3
In a certain chemical reaction, 297 g of zinc chloride was produced from the single replacement reac...
History, 28.10.2019 22:31
Mathematics, 28.10.2019 22:31
History, 28.10.2019 22:31
Chemistry, 28.10.2019 22:31
Social Studies, 28.10.2019 22:31
History, 28.10.2019 22:31
History, 28.10.2019 22:31
Biology, 28.10.2019 22:31
English, 28.10.2019 22:31
Mathematics, 28.10.2019 22:31
Biology, 28.10.2019 22:31