Prisha knows her blood type is A, but Sebastian does not kno…
Prisha knows her blood type is A, but Sebastian does not know his blood type. However, Sebastian knows that his mother and father both had blood type B. Prisha and Sebastian’s first child is a boy with type O blood. Based on this information, Sebastian’s blood type could be
Read DetailsA calorimeter containing 769.0 g of water at an initial temp…
A calorimeter containing 769.0 g of water at an initial temperature of 25.00 °C was used to measure the heat involved in a reaction. When the reaction was finished, the temperature of the water increased to 33.90 °C. Is the reaction endothermic or exothermic and how much heat energy involved in the reaction? (swater=4.184 J/goC) The reaction is [1]. The amount of heat exchanged is [2].
Read DetailsThe “calories” listed on food packaging are actually kilocal…
The “calories” listed on food packaging are actually kilocalories and a distinction is often made by capitalizing the C when referring to the calories in food. 1 food calorie= 1 Cal= 1kcal A serving of pancakes contains 230 Cal, how many Joules (J) would a serving contain? 1 cal = 4.184 J (here cal is not a food calorie)
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