Which process is a chemical change?

(1) melting of ice

(2) boiling of water

(3) subliming of ice

(4) decomposing of water

The proton has a greater mass than an electron true or false

In a similar analysis, a student determined that the percent of water in the hydrate was 25.3%. the instructor informed the student that the formula of the anhydrous compound was cuso4. calculate the formula for the hydrated compound.

What is 25 milliliters in cubic centimeters

Why does water have a higher specific heat than salt water

How many grams of magnesium oxide can be produced when 125 g Mg react with 102 g O2? Unbalanced equation: Mg + O2 → MgO Show, or explain, all of your work along with the final answer.

What do you use to measure mass

A salt shaker filled with 17.0g sodium chloride contain how many moles?

When a radioactive decay occurs what is released? A. Only protons and neutrons B. Only electrons C. Protons/Neutrons, beta particle, gamma ray D. Only gamma rays

How is the process of scientific inquiry and the design process similar and how they are different.

Provide an explanation at the subatomic level to explain why different colors are observed for different metal salts.