Balance the following chemical equations. 1. Fe + 02 → Fe3O4
2. Sr+ 02 → Sro
3. Sn+ NaOH → Na SnO2 + H2
4. K + Br2 → KBr
5. CH3 + O2 + CO2 + H2O

This is a mixture that has the same composition throughout.

An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh

Which characteristics can be used to differentiate star systems? check all that apply.