An unknown element (element X) bonds with the polyatomic ion acetate to form an ionic compound. Tests show that the compound contains 27% X by mass. What percent of the compound's mass is composed of acetate ions? Type your answer in the space below, rounded to the nearest whole number

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 does the viscosity of magma change as magma cools?

Correct relationship between molecular formula and empirical formula