Study the following two reactions. select all that apply. c(graphite) + o2(g) → co2(g) + 94.05 kcal c(diamond) + o2(g) → co2(g) + 94.50 kcal what could you infer from the information given above? the enthalpy of co2 is greater than the reactants. e2 - e1 is negative. graphite and diamond have equal enthalpy. diamond must have lower internal energy.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.