Write a symbol for every chemical element that has atomic number less than 8 and atomic mass greater than 8.5u

Find the empirical formula of each of the following compounds. given mass or for each element in a sample of the compound 3,611 g ca; 6.389 g c1

How can you use chemical equations to predict the products of the reaction you can carry out?

What effect might melting sea ice have for people who live in coastal areas?