What is the process in which coal is heated in the absence of air? Name the process.

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

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