Fill in the coefficients that will balance the following reaction:
Ca +CO₂+ 02 > CaCO3

This graph gives information on changes in sea ice extent in the arctic ocean over a 30-year span. the overall trend shows in the ice extent. to address the trend, scientists need to ask themselves, one direct consequence of the trend is that

Which best describes why nh4+ can form an ionic bond with cl-?

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.