A student needs to prepare 3.0 liters 0.20 M NaOH solution from a 5.0 M NaOH stock
solution. How many milliliters of stock solution should the student use? (1 point)
100 ml
120 mL
150 ml
160 mL

Idon't really understand this can you me and show your work.☺☺[ chemistry b] subject [ electron transfer in lonic bonds]grade( 12)

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

8. what happens to matter during a chemical reaction