Explain what needs to happen for the box to start moving

Consider the reaction below. Upper C upper C l subscript 5 (g) double-headed arrow upper P upper C l subscript 3 (g) plus upper C l subscript 2 (g). At 500 K, the reaction is at equilibrium with the following concentrations. [PCI5] = 0.

Calculate the ph of a 0.10 m solution of hypochlorous acid

What is the number of moles in 9.63 l of h2s gas at stp?

The latent heat of vaporization of water is 540 calories/gram. How many calories are required to completely vaporize 500 grams of water? A. 1,040 cal B. 40 cal C. 270,000 cal D. 1.08 cal

The effect of pH on the binding of oxygen to hemoglobin results in: A. an affinity decrease with lower H concentration, i. e., increasing pH. B. decreasing protonation of β-chains His 146 with decreasing pH (i. e.

Why does the sun appear to be the brightest star in the sky? A - Its apparent brightness is much greater than other stars. B - It burns more gas, making it brighter than any other star.

What effect does nuclear radiation have on atoms? It splits atoms. It burns atoms. It ionizes atoms.

The density of an aqueous solution of nitric acid is 1.36 g/ml and the concentration is 2.48 m. what is the concentration of this solution in percent by mass?

In a crystal lattice of an ionic compound, A. Kind of a given charge are clustered together B. Ions are surrounded by ions of the opposite charge C. A sea of electrons surrounds the ions D. Neutral molecules are present

Discuss why two objects of made of the same type of matter at the same starting temperature with different masses increase in temperature at different rates when the same amount of thermal energy is transferred to each object.