Help fasts! A shadow of complete darkness is called the . full shadow, penumbra, partial shadow, umbra

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

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

For the reaction i2(g)+br2(g)←−→2ibr(g), kc=280 at 150 ∘c. suppose that 0.450 mol ibr in a 2.00-l flask is allowed to reach equilibrium at 150 ∘c. what is the equilibrium concentration of 2ibr, i2, br2