How does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? A. the value of q is negative
B. the value of q is positive
C. the value of q remains. constant
D. the value of a decreases
E. the value of q equals zero

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at