Chemistry, 27.07.2019 02:00, tabathahasaunicorn1
From the list below, determine which properties are for compounds. i. it takes a large amount of energy to separates the elements of a compound. ii. the proportions of the elements in a compound are always fixed. iii. it is easy to separate the elements of a compound. iv. the elements/components of a compound do not retain their individual properties.
Answers: 2
Chemistry, 22.06.2019 13:00, rome58
Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.
Answers: 1
Chemistry, 22.06.2019 14:30, villarrealc1987
In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never
Answers: 2
From the list below, determine which properties are for compounds. i. it takes a large amount of ene...
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