What element has the electron configuration 1522s22p63s23p4?

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)

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Identify and describe the three ways that mutations affect organisms.