If 200 grams of water is to be heated from 24.0° c to 100.0° c to make a cup of tea, how much heat must be added?
a) 76 calories
b) 276 calories
c) 15200 calories
d) 2 calories

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a) 3.4 mol h2so4 b) 6.8 mol h2so4 c) 10.2 mol h2so4 d) 13.6 mol h2so4 a) 3.4 mol h2so4