Acompound with a large negative δh may not require activation energy. true false

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.