Which of the following reactions shows a chemical change producing a solid? A. NaCl(s) → NaCl(aq)
B. 2CH2OH() + 302(g) → 2C02(g) + 4H20(1)
C. 2AgNO3(aq) + CaBr2(aq) + 2AgBr(s) + Ca(NO3)2(aq)
O D. H2(g) + O2(g) → H2O()

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .

Tell me the iupac name of the following compounds:

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.