There are two reactants in a chemical equation and one product. The mass of the product is 32g. The mass of the first reactant is 18g. What must the mass of the second reactant be?

An object has a weight of 500 on earth what is the mass of this object

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

What is the equation for electrical work?