Which reaction results in only a physical change? a. 2h2o(l) + electricity ® 2h2(g) + o2(g) b. 2h2o2(l) ® 2h2o(l) + o2(g) c. 2h2(g) + o2(g) ® 2h2o(l) d. h2o(l) + heat ® h2o(g)

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Apush or pull that moves or changes and object when to objects touch

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]