Express the answer to each of the following calculations with the correct number of significant figures. a) 1.2 x 1.3 f) 32.88 / 4.38 b) 2.16 x 1.8 g) 16.590 / 1.8 c) 1.408 x 2.2 h) 84.99 / 2.03 d) 0.021 x 0.09330 i) 0.99 / 3.4484 e) 4.3324 x 1.2 j) 3.085 / 2.77448 \

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

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) .

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?