2. When iron reacts with oxygen, it forms iron oxide, or rust.

4 Fe + 3 O2 2 Fe2O3

If 112 g of iron (Fe) combines with 24 g of oxygen (O2), how much iron oxide is formed?

Hydrocarbons are compounds that contain (1) carbon, only (2) carbon and hydrogen, only (3) carbon, hydrogen, and oxygen, only (4) carbon, hydrogen, oxygen, and nitrogen, only

What are the two main classifications of energy resources?

Which of the following can be used to neutralize a sodium hydroxide (NaOH) solution? NaCl NH3 HCl Ca (OH) 2

Is a metal nail a conductor or insulator

What is the relationship between temperature and altitude in the troposphere? As altitude increases, temperature decreases. As altitude increases, temperature increases. As altitude increases, temperatures remain the same.

In a closed system, the total heat given off by warmer substances equals the total heat energy gained by cooler substances (qwater = - qliquid).

What compound will not give oxygen on heating

Choose one property of water that makes it unique. Describe the property and explain the chemical or physical?

An object is dropped onto the moon (g m = 5 ft/s 2). how long does it take to fall from an elevation of 250 ft.?

Which type of luster gives the mineral the appearance of metal?