Which statements correctly describe water boiling in a pot?

air bubbles from the atmosphere are being absorbed.
the water’s internal kinetic energy is increasing.
the water is gaining internal potential energy.
the water’s temperature is increasing.
individual water molecules are escaping.

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

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

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.