Answers: 1
Chemistry, 22.06.2019 15:30, alaf05160
Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what most likelyhappened? energy was created inside the blocks. energy was destroyed inside the blocks. energy was absorbed into the blocks from outside the system. energy was transferred from the warmer block to the cooler block.
Answers: 2
Chemistry, 22.06.2019 19:20, johnkings140
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, 22.06.2019 23:00, DESI111609
What is the average rate of the reaction between 10 and 20 s?
Answers: 1
Carbon-14 has a half-life of 5,700 years.
A sample of carbon-14 has a mass of 11.0 g. How much of
SAT, 29.07.2019 05:30
Computers and Technology, 29.07.2019 05:30
Computers and Technology, 29.07.2019 05:30
Computers and Technology, 29.07.2019 05:30
Computers and Technology, 29.07.2019 05:30
Computers and Technology, 29.07.2019 05:30