Unformatted text preview: steam to form the oxide and hydrogen gas. 4. The oxides of all of these first metals resist reduction by H 2 . 5. The next six metals (iron - lead) replace hydrogen from HCl and dil. sulfuric and nitric acids. Their oxides undergo reduction by heating with H 2 , carbon, and carbon monoxide. 6. The metals lithium - copper, can combine directly with oxygen to form the oxide. 7. The last five metals (mercury - gold) are often found free in nature, their oxides decompose with mild heating, and they form oxides only indirectly. lithium potassium strontium calcium sodium magnesium aluminum zinc chromium iron cadmium cobalt nickel tin lead Hydrogen antimony arsenic bismuth copper mercury silver paladium platinum gold...
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- Summer '09
- Reaction, Aluminium, Carbon monoxide, Chemical element, Chemical elements