Question 7 of 10 Which of the following indicates an endothermic reaction?
A. A+B+C+D+ gold
B. A+B + C + D + heat
C. A + B + heat → C + D + heat
D. A + B + heat → C+D

What are the genotypic and phenotypic ratios

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

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)]