On a weather map a stationary front boundary can be represented by which symbol

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.