What forms the structure called a coral reef

How are chloroplast and mitochondrion organelles similar

What is a good sentence for the word orbit?

Which of the following is equal to 4 kilograms? a. 4,000 g b. 40 g c. 4,000 cg d. 4,000 mg

What do the coefficients in chemical equations involving gases, solids, and liquids represent?

When calcium (Ca) is mixed with hydrochloric acid (HCl), a single replacement reaction occurs. What will be the product or products of the reaction? a. CaCl + H2 b. CaCl2 c. Ca + HCl d. CaCl2 + H2

Much of life on Earth is based in aquatic biomes. What property of water allows life to survive in liquid water?

A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have? 13 9 5 4

Calculate the maximum mass of carbon dioxide that could be obtained by adding excess hydrochloric acid to 15 g of calcium carbonate.

True or false: during dry weather, the water level in a small pond drops because of runoff.

Bradley hit a baseball with a bat. The baseball then hit a window and caused the window to break. Where did the energy that broke the window come from?