Why does eating involve kinetic energy?

What is the specific heat of a substance

The change in enthalpy is the change in heat energy of a reaction and is calculated by (Hint: Hess' Law) : Group of answer choices a. Sum of reactant enthalpies plus the sum of product enthalpies b.

Which is an example of a chemical change? a. water evaporating from a puddle b. cloth tearing when pulled c. wood forming sawdust when cut d. bread baking in an oven

Acetic acid is the active ingredient in vinegar. In a solution of acetic acid the following equilibrium is established. HC2H3O2 (aq) H + (aq) + C2H3O2 - (aq) The equilibrium constant for this reaction is 1.8 x 10-5.

Explain why an atom may go through nuclear decay but another won't? use examples to support your answer.

A metal block has a mass of 122 grams and measures 2cm x 2cm x 4cm. What is the density of the block?

What are valency and radicals

Tell me some bad effects of Ethanol

How many moles of carbon dioxide are released daily by a humming birds respiration?

If a scientist creates a new rock-like substance in a laboratory, why wouldn't this type of material be classified as a true mineral?