Aballoon is filled with 3.60 L of H2 gas at STP. If the balloon is
taken into a sea where the pressure is 2.50 atm and the temperature is 10.00 °C, what is the new volume of H2 gas in liters?

What element breaks down into yttrium-90?

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules