A certain ore is 33.0% nickel by mass. How many kilograms of this ore would you need to dig up to have 25.0 g of nickel?

What is the pressure of 0.5 mol nitrogen (N2) gas in a 5.0 L container at 203 K?

What is the energy transformation that is taking place from the batteries to the flashlight when it is on? A) heat to magnetic to light B) chemical to magnetic to light C) chemical to electrical to light D) mechanical to electrical to light

If you make an electromagnet using a battery circuit and a steel nail, how can you increase its magnetic strength? A. replace the nail with a copper rod B. wrap more coils of wire around the nail C. use a longer nail D.

What does chlorine (Cl-) do for sodium (Na+) ? What tasty substance is produced when this happens?

A 1.00 l sample of water contains 0.0036 g of cl - ions. determine the concentration of chloride ions in ppm if the density of the solution is 1.00 g/ml

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?