Which of the following groups contains reactive elements that need to gain only one electron to have a full outer energy level? alkali metals alkaline earth metals halogens noble gases

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .

Chromosome 17 is made of over million base pairs.

What is the percentage of hydrogen in c2h4