Aluminum will react with bromine to form aluminum bromide (used as an acid catalyst in organic synthesis). How many moles of excess reactant remain when 5.00 mol of aluminum reacts with 5.00 mol of bromine? Assume a 100% yield and don’t forget to balance the equation. Al(s) + Br2(l) à Al2Br6(s)

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy