Molecules on an acid–base indicator react chemically with ions in a solution, causing the indicator to change color. which ions in the solution cause this reaction? oxygen ions water ions hydrogen ions nitrogen ions

The correct answer is hydrogen ions.

Explanation:

Acid-base indicator is used to detect the pH of the solution.

pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.

If the solution has high hydrogen ion concentration, then the pH will be low and the solution will be acidic. The pH range of acidic solution is 0 to 6.9If the solution has low hydrogen ion concentration, then the pH will be high and the solution will be basic. The pH range of basic solution is 7.1 to 14The solution having pH equal to 7 is termed as neutral solution.

The equation representing the reaction between hydrogen ions and acid-base indicator follows:

Hence, the correct answer is hydrogen ions.

Ithink it’s a forms a perfect sphere or a smooth flattened oval

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.