During a heating process, 400 J of heat was absorbed by a 210 g block of iron (c iron = 0.449 J/g·°C). If the block started at room temperature (298 K), what will the final temperature be?

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

The boiling point of liquids is very high what does it indicate

Drug abuse will not lead to physical and psychological dependence. true or false ?