Chemistry, 15.01.2020 06:31 theh301234
If 7.25 kj of heat is applied to a 980 gram block of metal and the temperature started at 25c and finished at 36 c. what is the specific heat of the metal in j/g c
Answers: 1
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
Chemistry, 22.06.2019 12:30
When a scientific theory has been tested and proved by the scientific community, it becomes a law
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Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Chemistry, 23.06.2019 00:00
How many atoms or molecules are there in a mole of a substance?
Answers: 1
If 7.25 kj of heat is applied to a 980 gram block of metal and the temperature started at 25c and fi...
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