In the reaction between calcium carbonate and hydrochloric acid: a) What is the reactant containing the element oxygen? 5) What are the two products that contain the element oxygen? c) What happens to hydrogen atoms during the dissolution of water?

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.