Chatoyancy is when a mineral shows a metallic luster. true and false?

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent

What conclusion can you draw from this experiment about the components of the black ink?