Chemistry, 09.10.2019 20:00, stefaniethibodeaux
Which of the following is not one of the four main criteria that scientists use to determine if an idea is scientific?
- the idea is observable.
- the idea is always true.
- the idea is testable.
- the idea is repeatable.
Answers: 1
Chemistry, 21.06.2019 12:50, safi30360oz0c34
Assume that the variables x and y are inversely related. if k = 18, what is the value of y for each of the following points? be sure and record your data to be used in the following problem.
Answers: 2
Chemistry, 21.06.2019 14:40, 4tazaouiamine1r
What type of solution is formed if 10 g of kclo3 are dissolved in 100g of water at 30
Answers: 2
Chemistry, 22.06.2019 01:20, whrjegt4jrnfdvj
1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.
Answers: 2
Which of the following is not one of the four main criteria that scientists use to determine if an i...
Mathematics, 16.04.2020 05:00
Mathematics, 16.04.2020 05:00