Fpiece of copper has a density of 13.29 g/cm³ and a volume of 25 cm, what is the mass of the liquid?

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

What happens when an acid dissolves?

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?