Is ½ H2(g) + ½ I2(g) HI(g), H = +6.2 kcal/mole
21.0 kcal/mole + C(s) + 2S(s) CS2(l)
endothermic of exothermic

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²