Find the final momentum when an object with a mass of 25 grams traveling with a velocity of 20 m/sec collides with a stationary object having a mass of 45 grams.

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

Which element is the least metallic between cadmium, silver, zinc, or iron?

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