Why is ice melting called an endothermic process and not an endothermic reaction?

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

What is produced from neutralization of an acid and a base? a. hydronium ions b. citric acid c. salt and water

What characteristics does a earthquake have