Identify the variables in this hypothesis. if the pressure of a gas is increased, then the volume will decrease because the particles of the gas will be forced closer together. the independent variable . the dependent variable

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?