100.0 g of 4.0oC water is heated until its temperature is 37.0oC. If the specific heat of water is 4.184 J/g*oC, calcuate the amount of heat energy needed to cause this rise in temperature. J (Your answer should have 1 number after the decimal.)

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

What conclusion can you draw from this experiment about the components of the black ink?