1.) How would you make 100mL of a 20% EtOH solution starting with 100% EtOH and water? 2.) How would you make 100mL of 0.25M solution of NaCl? 3.) Explain how you would make 500mL of a solution containing 0.20M of NaCl (58g/m) 0.005M EDTA (342g/m) and 0.10M Tris (121g/m) starting with solids and water.

the wires in the toaster turning red and the toast crisping and turning brown

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles