The main difference between gases and liquids is that in gases A. the molecules are moving faster b. the forces between molecules are greater c. the distance between molecules are greater d. the molecules collide more frequently

The blank of an element is the average mass of all isotopes of that element

A and B are powders, A is insoluble while B dissolves to give a pH 3 solution. Mixing A and B gives bubbles or effervescence and a clear solution. a) which is the acid? b) if the other substance is a carbonate, name the gas given off.

Cation and anion of Cr (CO3) 3

What is the Bronsted acid of HS + H2O longarrow H2S + OH

What is the pH of a 40.0 40.0 mL solution that is 0.11 0.11 M in CN - CN - and 0.21 0.21 M in HCN HCN? The K a Ka for HCN is 4.9 * 10 - 9

How many Na + ions are found in 0.5 mol of Na2O?

Glycerin (C3H8O3) is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 170 g of glycerin to 337 mL of H2O at 40.0°C? The vapor pressure of pure water at 40.0°C is 55.32 torr and its density is 0.992 g/cm3.

Which of the following is the best example of an object absorbing light? A black sweater in the sun B clean window in the sun C A curved mirror in the sun D A long shadow in the sun

What is true of all body except sex cells

If a man has a mass of 83 kilograms on Earth, what will the force of gravity on his body be on the moon? A. 4,880.4 N B. 135.6 N C. 813.4 N D. 318.5 N