1. Note the regular, repeating pattern in each section of the graph. How can you explain this pattern? Call upon your knowledge of shells of an atom and the periodic table.

A48 g piece of ice at 0.0 ∘c is added to a sample of water at 7.4 ∘c. all of the ice melts and the temperature of the water decreases to 0.0 ∘c. how many grams of water were in the sample?

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

Can someone me with questions 12 and 13 plz.