Calculate the molarity of 0.700 mol of na2s in 1.40 l of solution.

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted