In my experiment, the starting temperature was 25F. I used KCl in my chemical reaction and
had an ending temperature of 35F. Was my
reaction exothermic or endothermic? How do
you know that?

Plz help me I don’t get it

How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

The three types is stress that act on earths rocks are compression, tension, and