The standard heat of formation of B2O3(s) is -1263.6 kJ/mol and the standard heat of formation of liquid water is -285.8 kJ/mol. Use the information below to find the standard heat of formation for one mole of B5H9. B5H9(l) + 12 O2(g) 5 B2O3(s) + 9 H2O(l) Horxn = -9036.6 kJ

How many moles are equivalent to 55.5g of nano3

How many grams of magnesium metal will react completely with 8.3 liters of 5.5 m hcl? show all of the work needed to solve this problem. mg (s) + 2hcl (aq) → mgcl2 (aq) + h2 (g)

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils