If cobalt metal is mixed with excess sulfur and heated strongly, a sulfide is

produced that contains 55.06% cobalt by mass. Calculate the empirical

formula of the sulfide.

What is the chemical formula for iodine?

The volume and shape of a solid could be changed by

What factors does the kinetic energy of an object depend on

If you put an egg on a sidewalk on a hot day in July and try to cook it you are using? passive solar energy geothermal energy active solar energy biomass

How many significant figures are in the number 2903?

When 1 g of sodium chloride (NaCl) is placed in 100 g of water, a solution results. Once the solution is prepared, water is now considered what part of the solution?

1. How is pressure affected as depth increases? 2. As the sun heats the surface of the oceans, two layers of water result. What separates the layers? 3. How is temperature affected when? (a) the depth increases (b) the latitude increases 4.

Are nails in a jar with water a chemical change

What is the molarity of a solution composed of 4.73 g of potassium iodide (KI) dissolved in enough water to make 0.169 L of solution? Answer in units of M.

Suppose you were given a substance and asked to determine whether or not it was a plasma. Write the characteristics you would look for to identify the substance.