A sample of bismuth has a mass of 343g and volume of 35.0 cm3. what is the density of bismuth

Condensation happens when water vapor cools. true or false?

The decomposition of calcium carbonate, CaCO3 (s) - - > CaO (s) + CO2 (g), has the following values for free energy and enthalpy at 25.0°C. G = 130.5 kJ/mol H = 178.3 kJ/mol What is the entropy of the reaction? Use G = H - TS. A. - 160.3 J / (mol.

A 2.50-l sample of a colorless gas at stp decomposed to give 2.50 l of n2 and 1.25 l of o2 at stp. what is the colorless gas?

Which biome contains mostly coniferous trees and receives 35 to 100 cm of rain per year? deciduous forest taiga (boreal forest) temperate rain forest

Andy puts some pieces of paper on a drum and then hits the drum with a drumstick. What observation supports the idea that sound is produced by vibration?

Benzene, C6H8, has an enthalpy of fusion = 10.19 kJ/mol. Calculate the amount of energy which is needed to change 88.0 g of solid benzene at 5.53°C into liquid benzene, also at 5.53°C?

What is the H3O + ion concentration of a solution that has an OH - ion concentration of 1.0 * 10^-3M? A) 1.0 * 10^-3M B) 1.0 * 10^-7M C) 1.0 * 10^-11M D) 1.0 * 10^-14M

Given the following chemical reaction: 2 O2 + CH4 CO2 + 2 H2O In the reaction of 6 moles of CH4 with excess oxygen, how many moles of water could be produced? 6 C 12.01 Carbon 1 H 1.01 Hydrogen 8 O 16.00 Oxygen A. 4 B. 6 C. 8 D. 12

Most mutagens have what kind of an effect on an organism?

According to the hess's law, the enthalpy of solution is: δhsoln = δhsolute + δhsolvent + δhmix. considering dissolving a small drop of nonpolar pentane oil in water which term (s) in the equation will experience the largest enthalpy change.