What type of reaction occurs when reactants absorb heat energy to form products?

a. endothermic

b. exothermic

c. acid-base

d. nuclear

What organelles are only found in plant cells

Our understanding of the atom has changed over time wich idea that was once accepted that is now considered scientificaly unaccurate

When chromium chloride crcl2 is dissolved in water the temperature of the water decreases answers?

Global warming facts

What would you do to measure the volume of a baseball

Which of the solutions below is a weak electrolyte? nacl (aq) koh (aq) hcl (aq) h2so3 (aq) all of these?

What is the gram formula mass of Ca (OH) 2

How much heat is absorbed by a 37g iron skillet when its temperature rises from 8oC to 24oC?

What chemical reaction occurs when an acid reacts with a base

Which of the following processes is spontaneous? A). building a house B). launching a satellite into orbit C). drops of dye dispersing in a clear solution D). cleaning your bedroom E). a ball rolling up a hill