Given the particle diagram:. At 101.3 kPa and 298 K, which element could this diagram represent?. 1. Rn 3. Ag. 2. Xe 4. Kr

Calculate the pH of the solution: [OH-] = 1 x 10^-11M a 12.0 b 2.7 c 3.0 d 11.0

What is the mass number of an atom of copper that has 36 neutrons?

How many molecules are in 4.0 mol h20

Why is cng preferred over petrol or diesel?

253.6g Na CI to moles

A small 15 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

Liquid water is heated until it boils and becomes water gas. Which statement is true about the water?

You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg.

What is the ratio of Fe+3 ions to O2 - ions in a neutral compound? a. 1:2 b. 2:1 c. 2:3 d. 3:2

What is the specific heat capacity of a 17.5g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25 degrees C?