Ateacher describes a mathematical system that can be used to convert the weight of water to the mass of water. what is the teacher most likely describing?

To describe a mathematical system that converts weight of water to mass equivalent, the teacher must use the idea of acceleration of gravity. Mass is the amount of matter composed in a substance. Weight is affected by the pull of gravity. Weight is mass multiplied by acceleration of gravity. Gravity acceleration is equal to 9.81 m/s2. So to convert weight to mass, divide the weight by 9.81 m/s2 simply.

She is most likely to find basically the weight and mass and what is the difference.

Cr(oh)3 -> cr(3+) + 3oh-