a piece of ribbon is shared equally among 5 girls what fraction of the ribbon does each girl get, 20 points​

Which statement is true about ionic compounds?

What type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? view available hint(s) what type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? salt bridge disulfide bridge hydrogen bond hydrophobic interaction

How are isotopes of the same element alike?