Definition: this is the amount of disorder in a system

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

What is happening when the water inside a kettle heats up and begins to boil