Pls help asap Question 6
1 pts
6. Which best explains why the total mass of the product(s) would be less than
the total mass of the reactant(s) after a chemical reaction?
O A. A chemical change occurred.
O B. A physical change occurred.
C. Gases were released to the atmosphere.
O D. Atoms involved in the reaction lost mass.

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

Connect the whole numbers on the periodic table to indicate what they represent?