Is potassium transparent

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]