The initial temperature of a bomb calorimeter is 28,50°C. When a chemist carries out a reaction in this calorimeter, its
temperature decreases to 27.45°C. If the calorimeter has a mass of 1.400 kg and a specific heat of 3.52 J/g °C), how much
heat is absorbed by the reaction?
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140 J
418 J
1.470J
5.170 J
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its b it was a compound

answer: option (a) is the correct answer.

explanation:

the measurement of hydrogen ions in a solution is known as ph.

if ph of a solution is less than 7 then the solution is acidic. if ph of a solution is greater than 7 then the solution is basic.

when the ph of a solution equals 7, then the solution is considered as neutral.

the ph of pure water is 7, therefore, it means that concentration of hydronium ions equals that of hydroxide ions.