If you dont know the percent composition of a substance, can you determine its molecular formula

Which element is reduced in this reaction? 2KMnO4+3Na2SO3+H2O→2MnO2+3Na2SO4+2KOH

The equation for the reaction between copper and nitric acid is vCu + wHNO3--->xCu (NO3) 2 + yNO + zH2O Balance the equation and find v, w, x, y and z.

A student produces carbon dioxide gas by heating calcium carbonate in a flask. She collects the gas by bubbling it into a test tube inverted in water. After filling the test tube, the student measures the pressure of the test tube's contents as 100.

When liquid detergent dissolves in water, which is the solvent and which is the solute

Rodger Maris swung a bat which had a mass of 2kg at a speed of 45 m/s. How many joules of kinetic energy could he give to a ball?

Which of the following solutions is a good buffer system? Which of the following solutions is a good buffer system? a solution that is 0.10 M HF and 0.10 M LiC2H3O2 a solution that is 0.10 M HC2H3O2 and 0.10 M LiC2H3O2 a solution that is 0.

Which formula shows a substance that is not molecular?

Brainstorm how you could run a pcr reaction if you did not have access to a thermal cycler.

Ch4+br2=ch3br+hbr which type of reaction does this equation represent

Would you use sandstone or slate for building