TRUE OR FALSE In a chemical reaction , molecules are not necessarily conserved while atoms are (true or false)

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)

Which characteristics can be used to differentiate star systems? check all that apply.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave