Chemistry, 24.07.2019 11:30, tejasheree
Since soap and detergent action is hindered by hard water, laundry formulations usually include water softeners—called builders—designed to remove hard water ions (especially ca2 + and mg2 + ) from the water. a common builder used in north america is sodium carbonate. suppose that the hard water used to do laundry contains 75 ppm caco3 and 55 ppm mgco3 (by mass). what mass of na2co3 is required to remove 90.0% of these ions from 10.0 l of laundry water?
Answers: 1
Chemistry, 21.06.2019 23:00, AbhiramAkella
Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?
Answers: 1
Chemistry, 22.06.2019 22:00, aliciaa101
Ill give u brainliest pls how is mass of carbon conserved during cellular respiration
Answers: 1
Chemistry, 23.06.2019 00:30, runninglovexoxo
The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2
Answers: 2
Chemistry, 23.06.2019 08:00, vetterk1400
Drag each pressure unit with the corresponding number to describe standard atmospheric pressure
Answers: 1
Since soap and detergent action is hindered by hard water, laundry formulations usually include wate...
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