Chromium is a transition metal, and oxygen has an oxidation number of -2. use this information to match each compound to its chemical formula. Cro —>
Cro2 —>
Cro3 —>
Cr2O3 —>
Chromium(Vl) oxide
Chromium(lV) oxide
Chromium(lll) oxide
Chromium(ll) oxide

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

Draw the lewis dot structure for each of the following polyatomic ions

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium