Which acid and base will combine to form a salt without forming water? hydrochloric acid (hcl) and ammonia (nh3) carbonic acid (h2co3) and potassium hydroxide (koh) hydrobromic acid (hbr) and calcium hydroxide (ca(oh)2) nitric acid (hno3) and sodium hydroxide (naoh)?

One does not belong why? ice, gold ,wood ,diamond and table salt

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.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave