A graduated cylinder contains 31.0 mL of water. An irregularly shaped object is placed in the cylinder, and the water level rises to the 36.5 mL mark. If the object has a mass of 75.0 g, what is its density?

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

What does the symbol (–hfus) indicate in a phase change?

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