An atom has four electrons in its valence shell. what types of covalent bonds is it capable of forming?
choose one answer. a. single and double only
b. single, double, or triple
c. two double bonds only
d. four single bonds only

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

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 ) .

Apropane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas remains constant