Gold is a pure substance or a mixture.

Scientists have determined the average salinity of ocean water to be equal to ___ a. 3.45 g/mL b. 34.5 g/kg c. 34.5 g/mL d. 3.45 g/kg

Which of the following correctly describes molecules of two different gases if they are at the same temperature and pressure? A. They must have the same mass B. They must have the same velocity C. They must have the same average kinetic energy D.

What is the common name of sodium bicarbonate

A football field is 120 yards by 53.333 yards. What is the area of the football field in acres if 1 acre=43560 ft? Use correct significant figures when answering this question.

What is the atomic number of a sodium atom that has 11 protons and 12 neutrons?

How can there be snow near a giraffe's home This is actually science so yeah

If a sealed syringe that contains some gas in heated in which direction will the syringe plunger move

Use the drop‑down menus to label the statements as either true of false. Dichloromethane is flammable. true false Methanol is flammable. Concentrated sulfuric acid is corrosive. 10% sodium carbonate solution must be used in the fume hood.

What is the process all rocks are continuously in during which that can change into other types of rocks

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?