How many neutrons are in an atom of mg-25

The constant-volume heat capacity of a gas can be measured by observing the decrease in temperature when it expands adiabatically and reversibly.

At what temperature will you find more potassium nitrate (kno3) in 100 g of H2O. In other words at which temperature will you have a higher solubility: 10c, 20c, 50c, 85c?

Recognizing the Properties of Water Water has a "bent" geometry. Which explanation does not explain why? o Water's oxygen has unbonded electron pairs that repel each other. Water can form hydrogen bonds.

You have left the carton of milk out of the refrigerator overnight and it has spoiled. This is an example of a A. Physical property O B. Physical change OC. Chemical property D. Chemical change Reset Selection

When water dissolves salt, which process is not involved? dissociation hydration ionization answer: ionization

If you wanted to study the science of describing, naming, and classifying organisms, what would you study?

The specific heat of silver is 0.234 j / (g·c). calculate the amount of energy that is needed to raise the temperature of 175 g of silver from 22.5°c to 40.0°c.

Gypsum is hydrated calcium sulfate. a 4.89 g sample of this hydrate was heated. after the water was removed, 3.87 g anhydrous calcium sulfate remained. determine the formula of this hydrate and name the compound.

A chemical reaction produces CO2 (g). If 44 g is produced at 1.0 atm and 25°C, what volume will the gas occupy? (Assume that CO2 behaves as an ideal gas under these conditions.

What is the smallest carbohydrate called?