A chemistry question in the second year of junior high school!! Urgent!!!

A 3 in the lower right corner represents 3 hydrogen atoms combined, and a + in the upper right corner means that the whole has a positive charge.

A hydrogen originally had a proton, and because hydrogen was No. 1, 3 hydrogen atoms had 3 protons.

Atoms, molecules, etc. do not carry electrons, so h3 does not carry electrons, but this thing has a positive charge, which means that the whole has a positive charge, so an atom is composed of a nucleus and electrons, and the protons in the nucleus have a positive point, and the negative charge of the electrons cancels out. We know that it has 3 protons, which is 3 positive charges, why does it have only one in the end, because it cancels out with 2 negative charges, only the electrons have a negative charge, so there are 2 electrons.

Its overall name is hydrogen 3 ions. Thank you!

It's very simple, h3+ is a cluster of three h atoms with one positive charge, atoms are not charged, three h atoms are combined with one positive charge, which means that the cluster has lost an electron. An H atom has one electron and one proton Neutral electrons are negatively charged, and protons are positively charged, and 3 h atoms lose one electron, not 3 protons, two electrons.

Indicates the chargedness of this ion 2+ means with two positive charges - means with one negative charge.

Solution: Because a hydrogen atom has 1 proton, one electron. So if there are 3 hydrogen atoms in the whole ion, it means that it has 3 protons.

And because the proton is positively charged, the electrons are negatively charged, and the whole ion has a unit positive charge, so there should be 2 electrons.

The + in the upper right corner is the positive charge of a unit What is the 3 in the lower right corner?

Unless it's an atomic cluster with some element that is combined with a single H3+, I haven't seen it.

The four corners of the elemental letters are marked, and each mark has a different meaning, and I have forgotten it for several years, so I can't help it.

Each H3+ particle contains 3 protons and 2 pips. The lower right corner is the number of particles, and the upper right corner is the number of charges. There is no way to seek the law. You can only rely on the periodic table.

Because a hydrogen atom has 1 proton, one electron. There are 3 hydrogen atoms in the whole ion, indicating that it has 3 protons.

And because protons are positively charged, electrons are negatively charged, and the whole ion has a unit positive charge, so there are 2 electrons.

The solute in d is sulfuric acid and copper sulfate, and sulfuric acid reacts with aluminum to form hydrogen; Aluminum and copper ions are replaced to form elemental copper.

Dilute copper sulfate oxide to produce copper sulfate, add sodium hydroxide to produce copper hydroxide, and then add excess dilute sulfuric acid to neutralize sodium hydroxide to form copper sulfate acidic solution, aluminum wire reacts with acid to produce bubbles, and replaces with copper sulfate to generate copper.