What mass of zinc is needed to react with 23.1g of phosphoric acid according to the following equation?

3 zn + 2 h3 (po4) = 3 h2 + zn3(po4)2

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?