A) What is the energy of the reactants?

b) What is the energy of the products?

c) Calculate ΔH.
How would you classify the reaction based on its energy change? Explain.

d) Calculate the activation energy for this reaction.

e) How much energy is released during the formation of the products?

f ) Explain why you have goose bumps when coming out of the pool on a hot sunny day.

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025