A student carries out simple distillation on a sample of blue ink. Predict how the appearance of the ink changes, and give a reason for your answer.

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

1. list three scientific reasons cockroaches may fly.