The solid oxide of generic metal m is added to 75 ml of water and reacts to produce a metal hydroxide solution that is 0.40 m in the resulting compound. the metal hydroxide solution then reacts with all of the 27 ml of 1.1 m hcl to form water and the metal salt. how many valence electrons must m have?

The number of valence electrons that M must have is 1.

Explanation:

The chemical equation for the reaction of metal oxide with water follows:

The reaction of metal hydroxide with hydrochloric acid follows:

To calculate the number of moles for given molarity, we use the equation:

    .....(1)

Molarity of metal hydroxide solution = 0.40 M

Volume of solution = 75 mL

Putting values in equation 1, we get:

Molarity of HCl = 1.1 M

Volume of solution = 27 mL

Putting values in equation 1, we get:

To calculate the value of 'x', we divide the number of moles of HCl by number of moles of metal hydroxide, we get:

Hence, the number of valence electrons that M must have is 1.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

i think the answer is terrae but not 100 percent sure. ▓▬▬ §