Cold packs contain chemical that react to absorb heat. Which substances is used in cold packs?

A. Calcium Chloride

B. Sodium Carbonate

C. Magnesium sulphate

D. Ammonium nitrate

Calculate the solubility of cux (ksp=[cu2+][x2-]=1.27*10-36) in a solution that is 0.190 m in nacn.

Explain how I rotating electric fan might be the model of an Adam

It's believed by many that a good way to vandalize a car is to pour sugar (sucrose) in its gas tank. the sugar is believed to dissolve in the gasoline, enter the gas lines and then "caramelize" into a gunky texture when combusted.

Animal fats are solids and have a smaller proportion of unsaturated fats. solids and have a higher proportion of unsaturated fats. liquids and have a higher proportion of unsaturated fats. liquids and have a smaller proportion of unsaturated fats.

Determining the density of unknown metals

What is the difference between the electronegativity values of sodium and bromine?

Which of the following elements is the most stable element? argon, manganese, phosphorus, robidium

List results of Chemical Reactions.

When you measure something in meters cubed, you are measuring

Low density: low pressure: high density Is which. evaporation? water vapor? condensation / liquid water