Which statement is not true?

1) a mixture is not chemically bonded together

2) a mixture can be any collection of different elements, molecules, and/or compounds

3) a mixture is a group of chemically bonded substances

4) a mixture can be separated into its parts

Your answer is 3) A mixture is a group of chemically bonded substances.

Hope this helps!  

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b