Answer these three questions Mole to Mole: KClO3(s) KCl(s) + O2(g)
How many moles of KClO3 are needed to produce 50 moles of O2?

Mole to Mass: Calculate the mass of hydrochloric acid needed to react with 5.00 moles of zinc in a single replacement reaction.

Mass to Mass: Calculate the mass of sodium phosphate (Na3PO4) produced if 30.0g of sodium acetate (NaC2H3O2) and silver phosphate (Ag3PO4) react.

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction