Which describes who will record their measurements in joules? Lily and Henry Astrid and Bob Lily, Astrid, Henry, and Bob Astrid, Henry, and Bob

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Which substance has non polar covalent bonds

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11