Which missing item would complete this alpha decay reaction? 251/98cf —> 247/96cm + a. 0/-1 b b. 247/97 bk c. 4/2 he d. 238/92 u e. 0/0 y

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)]

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

How can a mixture of salt water be separated into salt and water