Some chemical formulas contain parentheses. When counting atoms, multiply everything inside the paren- theses by the subscript. For example, Ca(NO3)2 has one calcium atom, two (2 X 1) nitrogen atoms, and six (2 X 3) oxygen atoms. Find the number of atoms of each element in the formu- las Mg(OH)2 and Al2(SO4)3. Record your work in your Science Journal.​

Which expression will have the same sum as 3_8 + 1/4?

Which statement justifies why angle ebc measures 90?

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?