Adam added 30.0 grams of Sodium Hydroxide to 750.0mL of water to create a stock solution to be used for a number of purposes. 250.0mL of the stock solution was removed to be used for a demonstration but Mr. Offenbacher decided the initial concentration was too strong. He decided to add another 100.0mL of water to the removed solution. What was the concentration of the initial stock solution and what is the concentration of the final concentration to be used for the demo? Show all of your conversion factors for full marks.

well first make sure that you are black. then rob a gas station and the kill the attendant

step-by-step explanation:

x= 149. 24+7=31. 180-31=149

your welcome

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.