What layer has temperatures that may reach as high as 2000 degrees celsius

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.