On a hot day, heat can flow into a building through a glass window. On a cold day, heat can flow out of the building through the window. How does putting a curtain in front of the window slow down the change in temperature?

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o