Describe how a solid rock in the lower level of the crust could become a molten rock. please help me

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons