The reaction of Ca with water is represented by the equation below. What mass of water is needed to completely react with 2.35 g of Ca?

What semimetal can form four single covalent bonds.

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms