WILL GIVE BRAINLIEST Two helium isotopes fuse to form beryllium as shown below. The mass of beryllium is 2.73 x 10-7 kg less than the combined mass of the two helium atoms. How much energy was produced during this reaction? The speed of light is 3x108 m/s. Show your work. Use E=mc2.

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Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

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)]