Is a marshmallow turning black when toasted a physical or chemical change?

Imagine that you mixed 25 mL of water at 0 C and 25 mL of water at 50 C. What is the final temperature of the water, how do you know? What is the ▵T for the cold water? How much heat energy transferred to the cold water?

Why Iodine doesn't dissolve in water?

If a rock were taken from earth to the moon, how would its mass and weight be affected and why?

A depiction of the arrangement of atoms in molecules and polyatomic ions

Adam's dad takes the parkway to work. It takes him 45 minutes to travel from mile marker 145 where he enters the parkway to his exit at mile marker 98. what is his average speed. I do know it is not D. A. 193.3 B. 62.7 C. 1 D. 47

What is the molarity of an h3po4 solution if 15.0 ml is completely neutralized by 38.5 ml of 0.150m naoh?

Unscramble the word. Lncsuoicno

According to Le Chatelier's principle, what happens to the equilibrium constant (K) when the concentration of the reactants is doubled? A. The value of the equilibrium constant (K) is doubled. B. The value of the equilibrium constant (K) is halved.

How many experimental trials are needed before a hypothesis can be accepted as true?

The type of bonding that involves a transfer of electrons is