Usually hard but brittle
Ionic or covalent

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?

Heat is the total potential energy of a substance that can be transferred. true false

If c + di is a point on the circle, then | c + di |=