Calculate the following, and write the answers with the correct number of significant figures.
20. (5.63 x 1015 m)(8.9630 x 104 m)
21. (45000 cm + 21.890 cm)(2.03 x 10-9 cm)
22. (8.36 x 1011 g) + (2 x 1010 g)
5.5790 x 100 g

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

What is the chemical formula for dihydrogen monoxide