C) A battery of emf, E drives a current of 0.25A when connected to a 5.5ohms resistor. When the 5.5ohms resistor is replaced with a 2.5ohms resistor, the current flowing becomes 0.5A.
Using E=V+Ir, Find the emf, E of the battery.

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol

Volume is a measurement of how fast particles of a substance are moving

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180