JOIN MY MEETING
ID-9384026088
PASSWORD 1234...
Answers: 2
Chemistry, 22.06.2019 17:30
What type of organic molecule comprises the majority of a potato?
Answers: 1
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
Chemistry, 23.06.2019 11:00
Which of the following reactions is endothermic? h2(g) + ½ o2(g) h2o(g), h = -57.82 kcal ½n2(g) + o2(g) + 8.1 kcal no2(g) ½ n2(g) + 3/2 h2(g) nh3(g) + 11.0 kcal c(diamond) + o2(g) co2, h = -94.50 kcal
Answers: 2
Chemistry, 23.06.2019 11:40
Which of the following would have the lowest average kinetic energy
Answers: 1
English, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
History, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
Chemistry, 20.07.2019 14:30
History, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30