A hydrate of formula M2EO3•xH2O (where M is a metal, E is a non-metal, and x is a whole number) has a formula mass of 252 g/mol. If the mass percent of oxygen in the hydrate is approximately 63%, what is the value of x? (Molar mass of oxygen = 16 g/mol). Enter your value as a whole number.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Compare and contrast an assemblage and a pollen fingerprint by defying both and giving examples of each from the chapter.