A lawnmower runs on gasoline. what type of energy transformation takes place in its engine?

Physical Science Gas Laws Test Boyles Law: P1/V1 = P2/V2 1atm = Standard Pressure Charles Law: V1/T1 = V2/T2 Degrees Celcius + 273 = Kelvin Combined gas Law: (P1) (V1) = (P2) (V2) (T1) (T2) Answer the following problems using the correct formula.

What volume of 6.00 m naoh solution is required to prepare 0.50 ml of 0.15 m naoh solution a. 12.5 ml of naoh b. 25 ml of naoh c. 30 ml of naoh?

Which of the following is NOT a characteristic of a strong acid? The acid dissolves completely in water All are characteristics of a strong acid The acid conducts electricity Parts of the acid still remain when it is dissolved in water

How does the heat flow in a pot

When nitrogen is removed from a sample of air by the process of nitrogen fixation, what happens to the total pressure of the sample? a. It increases. b. It stays the same. c. It decreases.

Which statement about scientific explanations is true? A. Scientific explanations are open to change. B. Scientific explanations are never reliable. C. Scientific explanations are always correct. D. Scientific explanations are rarely proven wrong.

Which of the following might a chemist choose to study? A. Glacier movement in Alaska B. Better ways to recycle plastics C. The effects of hurricanes on turtle populations D. The vibrations in bridges caused by big trucks

How many electrons would the element calcium need to be electrically neutral?

How to convert metric units?

President Nixon promised over $3 billion in economic aid to North Vietnam after the war. a. true b. false