Michael mixes two chemicals together in a beaker. The chemicals change color, and the beaker heats up quickly. What kind of change most likely occurred?

Even if a man has normal colour vision, he may be a carrier for green-red colour blindness. And if his partner is a carrier or suffers from the disease, then...

is defined as $D$ = $M/V$ $D$ = $(.2400kg)/(500mL)$ $D$ = $4.80*10^-4$ $kg$/$mL$

In order to determine the density of a substance, you need to know its mass and volume. To find the mass of the corn oil, subtract the mass of...

To find the of the oil, all you have to do is figure out how many grams you get in $"1 mL"$ of oil. In that regard, the density...

Color change is a good way to tell that a change has occurred, and there's really nothing more to say about that. However, I would warn you against using color...

So how do we account for the mass loss? Clearly, evaporation has occurred and water, as vapour, has been lost from the beaker. How much water has been lost? Had...

Physical changes are changes in the formation or state of molecules and atoms. The arrangement of the molecules and atoms is different after the change but the chemical composition of...

And, of course, in the process described a chemical change has occurred. Chemical change is characterized by the formation of new substances, and the making and breaking of strong chemical...

Zinc metal is oxidized to zinc ion: $Zn(s) rarr Zn^(2+) + 2e^-$ $(i)$ Hydrogen ion is REDUCED to dihydrogen gas: $2H_3O^(+) + 2e^(-) rarr H_2(g)uarr + H_2O(l)$ $(ii)$ For the...

$"Freezing point depression"$ is a colligative property, and is proportional the $"number of particles in solution"$. Now glucose is not an electrolyte, and it will depress the freezing point by...