Andrew conducted an investigation to determine the effects of burning on a sample of steel wool. Steel wool is a bundle of metal fibers used for cleaning metal pots and pans. Some data from his investigation are shown in the table. Before burning
2.2g
After burning
2.4g
Make a claim about whether steel wool undergoes a chemical reaction during burning. Support your claim with evidence from the investigation

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

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).

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.