When 6.25 grams of pure iron are allowed to react with oxygen, a black oxide forms. if the product weighs 8.15g, what is the empirical formula of the oxide?

294 joules of heat is transferred to a 10.0 gram sample of silver at 25.0º C. What is the final temperature of the silver? The specific heat capacity of silver is 0.24 J/g∙°C.

How many moles of oxygen would be needed to react with 6 moles of ethane?

Vanadium (v) oxide reacts with calcium according to the chemical equation below. when 10.0 mole of v2o5 are mixed with 10.0 mole of ca, which is the limiting reagent?

How many atoms of phosphorus are in 4.90 mol of copper (II) phosphate?

A flask that has a mass of 345.8 g is filled with 225 mL of carbon tetrachloride. The mass of the flask and the carbon tetrachloride is found to be 703.55 g. Calculate the density in g/mL and kg/L.

How does a salt bridge improve a battery

Hat information is needed to determine the energy of an electron in a many-electron atom?

Write the formulas for the following compounds: (a) copper (l) cyanide, (b) strontium chlorite, (c) perbromic acid, (d) hydroiodic acid, (e) disodium ammonium phosphate, (f) potassium dihydrogen phosphate, (g) iodine heptafluoride, (h)

Name a complex salt used in silver-playing.

10. In what part of the world might you find Mystery Island (note: you will be given full-credit for simply attempting this question and you will find the actual answer in your teacher's feedback). Do not answer!