The pharmacy’s recipe book provides a formula that yields 20 g of an ointment. You are asked to prepare a 140 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

 You need to prepare 200 mL of a 10% solution using a 28% and an 8% solution. How many milliliters of each solution will you need?

in a circuit, a light bulb is an example of a _______________. 

A point in a circuit where three or more conductors meet

Measures resistance

The ratio of charge to potential difference

Opposing charges ______________. 

Parallel configuration of capacitors is easier to deal with than series configurations. (from an arithmetic point of view)

1.602 x 10-19 Joules

The algebraic sum of all the electric charges in a closed system remains constant.