8.1 moles of HCl is put into a beaker with enough water to make a total of 189.98 milliliters of solution. What is the molarity of the resulting solution? (Round the answer to two decimal places
regardless of significant figures. Do not include units in the answer.)

42.64 M

Explanation:

Step 1: Given data

Step 2: Convert the volume of the solution to liters

We will use the relationship 1 L = 1,000 mL.

Step 3: Calculate the molarity of the solution

The molarity is equal to the moles of solute divided by the liters of solution.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e