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Chemistry, 21.06.2019 20:10
Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.
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Chemistry, 21.06.2019 22:10
Here’s one way to follow the scientific method. place the missing steps in the correct position in the process
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Chemistry, 22.06.2019 01:20
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.
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Chemistry, 22.06.2019 08:40
Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride
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Mathematics, 10.04.2020 00:16
Mathematics, 10.04.2020 00:16
Mathematics, 10.04.2020 00:16
Mathematics, 10.04.2020 00:16
English, 10.04.2020 00:16
Chemistry, 10.04.2020 00:16
Mathematics, 10.04.2020 00:16
English, 10.04.2020 00:16
Mathematics, 10.04.2020 00:16
English, 10.04.2020 00:16