Convert the following. express your answers in
scientific notation.
a. 7.5 x 104 j to kilojoules
75 x 104 1 to biloiulec non
b. 3.9 x 10 mg to decigrams
c. 2.21 x 10-4 dl to microliters

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume