Given the following equation, what is the actual yield of potassium chloride if the percent yield is 94% and you have 750 g of oxygen gas and chlorine gas reacting with excess manganese oxide and potassium hydroxide? 2MnO2 + 4KOH + O2 + Cl2 -> 2KMnO4 + 2KCl + 2H2O
must show work

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

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

Based on its chemical properties, identify the position of each chemical family on the periodic table.