Given this equation: 2 H2 + O2 → 2 H20, how many moles of O2 are needed to yield 3.6 moles of water?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe