A certain ore is 34.4% nickel by mass. How many kilograms of this ore would need to dig up to have 30.0g of nickel?

Infrared radiation falls in the wavelength region of 1.00*10-6 to 1.00*10-3 meters. What is the energy of infrared radiation that has a wavelength of 4.04*10-4 m?

The force of gravity will cause two different masses to ... ? A) move away from one another B) be attracted to one another C) orbit one another D) repel one another

How many grams of copper are in 23.6 grams of copper ii sulfate

The state of matter that is comprised entirely of ions and electrons is

How temperature affects the state of matter?

A gas has a volume of 30 L at 105 kPa. What pressure is required to compress the gas to 21 L?

Using special equipment which layer of the sun atmosphere is visible during a total solar eclipse

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3