Add 3.76 × 104 and 5.5 × 102 and write the answer in scientific notation. a. 9.26 × 104 b. 9.26 × 106 c. 3.82 × 106 d. 3.82 × 104

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.