How are we made of the same atoms in stars?

Combustion analysis of an unknown compound provides the following dаta: 73.5 grams C, 4.20 grams H, and 72.3 grams Cl. What is the percent composition of each element in this compound?

What is the molar mass of Na2Cr2O7?

Why cant we just put in subscripts?

In order for a solute to dissolve in a silver, what must be true?

How many molecules of glucose are in a 2.0mL of a 1.02mM solution of glucose?

134 miles=? inches. Chemistry

A solution can be both a. Dilute and concentrated b. Saturated and dilute c. Saturated and unsaturated d. Supersaturated and saturated e. None of these

When the concentrations of reactant molecules are increased, the rate of reaction increases. The best explanation for this phenomenon is that as the reactant concentration increases, A) the average kinetic energy of molecules increases.

The average kinetic energy of the particles in a gas A. is not affected by the temperature of the substance. B. increases as the temperature of the substance decreases. C. is proportional to the temperature of the substance. D.

If the molar mass of NaCl is 58.44 g/mol, what amount of NaCl (in mol) is contained in 250.0 mg of NaCl?