PLEASE HELP!! A model of an atom is shown below. Which element is represented by this
model?

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water