How does hydroxide have a negative charge

The charge of many ions can be worked out using patterns in the periodic table. Elements in the same group form ions with the same charge.

Transition metals in the central block between groups 2 and 3 can have ions with different charges. The number in the name of the compound shows the charge of the metal ions in that compound. The table shows the formulae of some common transition metal ions. Polyatomic ions are formed from groups of atoms. The table shows the names and formulae of some of these ions.

The formulae of compounds containing polyatomic ions are worked out in a similar way to single atom ions. Tags: Hydrogen. Related Chemistry - At what pressure will hydrogen start to liquefy at room temperature? Chemistry - Are there other carbon free gasses that can be used for energy transport, apart from hydrogen?

Chemistry - Is there such a thing as an acid without a hydrogen? Learn more. Asked 1 year ago. Active 1 year ago. Viewed times. Improve this question. Greg Greg 1. The charge is for the overall molecule.

There are 10 electrons in this ion. Add a comment. Blend 2 cups of chopped red cabbage leaves and 1 cup water in a food processor or electric blender until pieces are tiny and uniform. Strain off the solids and keep the liquid. If you don't have a blender, you can also chop the cabbage coarsely and boil it in water for about 5 minutes until the liquid is dark purple. This purple liquid will change color according to the acidity or alkalinity of substances you want to test. Add about 10 drops of cabbage juice to approximately 1 tablespoon of a test substance.

What color does the cabbage juice turn in an acid like white vinegar? What color does the cabbage juice turn in a base such as a baking soda and water solution? Test the pH of various substances and develop a corresponding color-pH scale. Compare your results with the chart here. You can also make indicator paper by dipping strips of white paper towel, coffee filters, or white construction paper into the cabbage juice until they are purple.

When the purple strips are dry, use a toothpick, soda straw or eye dropper to place a drop of a test solution on the strips.