BRAINLIESTTT HELP A student performs an experiment using a calorimeter to determine the specific heat of an unknown substance. The student adds 50.0 grams of water at 20
°C to the calorimeter and then adds the unknown substance. The student records that the final temperature of the system is 26 °C. Given that the specific
heat of water is 4.18 J/g•°C, calculate how much energy, in joules, the unknown substance lost

Answersublimation;

The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.