What is the property that allows an object to float in water

Write the balanced equation for the complete combustion of hexane (C_6 H_12 0), with the correct states of matter. (5 pts)

How is heat transferred when a person holds a pen that is already at body temperature?

How many moles of gas occupy 98L at a pressure of 2.8atm and a temperature of 292k? and what law would you use?

A student dissolves of potassium chloride in of water in a well-insulated open cup. He then observes the temperature of the water fall from to over the course of minutes.

Why is burning propane gas a chemical reaction? a) The atoms in propane and oxygen rearrange to form other substances after the reaction. b) The atoms that make up propane and oxygen change into different atoms after the reaction.

58. Explain why each successive ionization of an electron requires a greater amount of energy. (6.3)

Define Average speed

Is the equation 3Br2+2Ga 2GaBr3 which of the following is not true

What is the equivalent mass of HBr in a complete neutralization reaction?

What would be the total mass of the products of a reaction in which 25 grams of table salt decomposes into the elements sodium and chlorine?