When diluting concentrated acids with water, wear appropriate ppe and slowly to to prevent a sudden release of heat or the creation of a fuming acid.

Solar energy is energy from the sun that is converted into thermal or energy. a. nuclear b. mechanical c. electrical d. chemical

What layer of the atmosphere is directly above the troposphere?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line