How much heat is released or absorbed (in kJ) by the system in the reaction of 17.7 g of SF6 with 23.7 g of H2O?
Make sure to enter the correct sign (+ or -). Enter to 2 decimal places. SF6 (g) + 3 H2O (l) \longrightarrow⟶ 6 HF (g) + SO3 (g) \DeltaΔHf° (kJ/mol) -1209 -285.8 -271 -395.6

Which is true of a liquid? it has a definite volume but not a definite mass. it has a definite mass but not a definite volume. it has a definite volume but not a definite shape. it has a definite shape but not a definite volume.

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.