If I have 25 mL of gas at a pressure of 2.1 atm and a temperature of 300 K, what will the pressure be if I increase the temperature to 400 K and compress the gas to a volume of 10 mL?

When do elements absorb energy and enter an excited state?

What does the x represent on a motion map

In an atom: The nucleus is made of electrons and protons. Protons have positive charges. Neutrons have negative charges. All of the above.

Pb (CH3COO) 2 + H2S - -> PbS + CH3COOH 1. How many moles are produced of PbS when 5.00 grams of Pb (CH3COO) 2 is reacted with H2S? Make sure to show your work to get full credit. 2. What type of reaction is shown in the reaction above?

Potassium nitrate has a lattice energy of - 163.8 kcal/mol and a heat of hydration of - 155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 113 kJ of heat?

One example of possible evidence of chemical reaction

True or False? Urea has a high solutiblity in water, due in part to its ability to form hydrogen bonds

Atomic weight of 20 elements

What information would you need in order to convert Molarity to % by volume

How to determine the charge of a polyatomic ion?