Question 9 9. Balance this equation. _Mg + Cl2 --> _MgCl2 O 1, 2,1 O 2,1,1 O already balanced

mol M A solution is made from 0.315 mol of Na Cr207. If the volume of the solution is 25mL, what is the molarity of the solution? O 0.0126 M O 12.6 M O 0.0794 M O 79.4 M hp # & 2 3 4. e f C V lo d'

Great work! 3. Pick a "for every" statement about copper and silver in this balanced reaction. 29 47 Cu Ag Copper 63.55 Silver 107.87 Hint: The correct balanced equation is Cu + 2A9NO, → 2Ag + Cu(NO,)2 For every 1 mole of copper, the reaction makes 2 moles of silver. For every 1 mole of copper, the reaction uses up 2 moles of silver. For every 1 mole of copper, the reaction makes 1 mole of silver. Submit Answer 3/3 submissions remaining Score:

Q 34