If something is broken into pieces will it weight more or less

A 1300 mL sample of gas with a molar mass of 71.0 g/mol at STP has what density?

What is the heat of solution? A) the amount of heat released when a vapor changes into a liquid B) the amount of heat absorbed or released when a solid dissolves C) the amount of heat required to change a solid into a liquid D) the amount of heat

A 50.0 mL sample of 1.54*10-2 M NaSO4 is added to 50.0 mL of 1.28*10-2 Ca (NO3) 2. What percentage of the Ca2 + remains unprecipitated?,

Which sign is NOT for a chemical change? A. Color change B. Change in volume C. Transfer of heat or light

What substances that are formed by the chemical combination of two or more elements in definite proportions

How many moles of Mgs203 are in 245g of the compound

A student was trying to obtain lithium by electrolysis of aqueous lithium chloride. Was he successful?

A Gouy balance is used to determine the magnetic susceptibility of a substance. A strong electromagnet is placed next to the sample, which is on a balance.

Is the bonds that cause gaseous Cl2 to become liquid when cooled intramolecular or intermolecular

Describe an example of deposition