How many neutrons are in the element phosphorus?

When the atoms of two substances joined to make a new substance the process is called?

A sample of 4.59 L of CO2 gas has a pressure of 7.56 atm. What volume (in Liters) would the gas occupy if the pressure was reduced to 2.57 atm and the temperature raised from 25.0oC to 39.0oC?

Charcoal can be soaked in lighter fluid when grilling food. Lighter fluid is extremely flammable. This is an example of which type of property? Physical property Chemical property Both A and B Neither A nor B

A gas sample contains 4.00 g of ch4 and 2.00 g of he. what is the volume of the sample at stp? 5.64 l 32.0 l 22.4 l 16.8 l 132 l

After what, the nucleus of the parent cell has divided into two new nuclei?

A gas has a volume of 5.0 L at a pressure of 50 KPa. What happens to the volume when the pressure is increased to 125?

What is the molar mass of Fe2Br3? 1.35 x 10^2 g/mole 3.27 x 10^2 g/mole 3.51 x 10^2 g/mole 8.14 x 10^2 g/mole

A gas with a volume of 5.0 L at a pressure of 215 kPa is allowed to expand to a volume of 14.0 L. What is the pressure in the container if the temperature remains constant?

Sunita carries out an experiment to investigate diffusion. She uses water and a food dye to find out how the volume of water used affects the time the dye takes to spread evenly through the water.

How are coefficients used to balance chemical equations?