Why are x-rays telescopes and gamma-ray telescopes in space?

In a 1.0 * 10-2 M solution of NH4ClO4 (aq), identify the relative molar amounts of these species.

A sample of pure copper has a mass of 5 grams calculate its volume

Explain why the formula HCI can represent two different chemical systems.

If you add 4.00 mL of pure water to 6.00 mL of 0.750 M NaCl solution, what is the concentration of sodium chloride in the diluted solution? A) 0.250 MM B) 1.13 M C) 0.500 M D) 0.450 M E) none of the above

What resists flow of electricity

What form of energy provides power for a gas stove? A. nuclear energy B. electrical energy C. chemical energy D. sound energy Can you explain the answer for me?

Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft*15.0 ft*8.60ft.

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?

Are the chemical reactions that take place when a battery connected endothermic or exothermic

What are 3 properties of carbon?