A homogeneous mixture is a mixture <span>which has uniform composition and properties throughout - it is identical in its every part. So, having this in mind, the correct answer is C. tap water - </span><span>even though it may have different levels of dissolved minerals and gases.</span>
A fluorine atom has nine protons and nine electrons, so it is electrically neutral. If a fluorine atom gains an electron, it becomes a fluoride ion with an electric charge of -1.
