State the law multiple proportions

Which of these is an indicator that a chemical reaction has occurred? precipitate forms temperature remains the same color is diluted mass increases

A solution is 40% acetic acid by mass. The density of this solution is 1.049 g/mL. Calculate the mass of pure acetic acid in 360 mL of this solution at 20 C. Answer in units of g.

What volume (mL) of a 15% (m/v) NaOH solution contains 120 g NaOH

A gas has a volume of 1.2l at STP. What will it's volume be if the temperature stays constant and pressure is increased to 2 atm

Which characteristics must an object possess in order to be considered alive?

Which consequence of new fishing methods had the most immediate impact on the environment? A. Diesel engines on newer ships contributed to global warming B. Increased reliance on fish in the American diet led to health problems C.

Which statement best describes the basis of the band theory of metallic bonding? a. Molecular orbitals overlap to form atomic orbitals in which the valence electrons of the atoms travel. b.

Which of the following is always valid? Choose only ONE answer. 1. W = - P ∫ dV, for the calculation of work in a mechanically-reversible piston-cylinder arrangement 2. For any fluid undergoing a change in pressure, Cp = dH/dT. 3. ΔH = ΔU + Δ (PV) 4.

Are kilograms heavy?

What is the molarity of a solution containing 55.8 g of MgCl2 dissolved in 1 L of solution?