How much effort force would you use to lift a 300 kg weight with a fixed pulley system?

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) .

What effect might melting sea ice have for people who live in coastal areas?

Classify this reaction: 2al+n2-> aln.