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i really need to know but please be easy in what you say i am in 8th grade.

2007-10-24 13:42:25 · 3 answers · asked by Manu Ginobili 1 in Science & Mathematics Chemistry

3 answers

Chromium tends to form either 2+ or 3+ ions.
This means that it will form either CrO or Cr2O3 with oxygen.

2007-10-24 13:47:00 · answer #1 · answered by Madolyn 2 · 0 0

Chromium has several oxidation numbers and valences (capacities for combining with orther elements). Two oxides of chromium are Cr2O3 and CrO3. These are illustrations of John Dalton's Law of Multiple Proportions (1808). This law states that when elements form more than one compound with the same other element, the quantities in each are in a ratio of small whole numbers. This is taken as one indication that matter exists as atoms. If the ratio is a small whole number, like 1, 2, or 3, that means that a small number of atomic particles come together to form each molecule.

2007-10-24 13:53:52 · answer #2 · answered by steve_geo1 7 · 0 0

chromium has more than one oxidation state. do it can share its electrons in more than one way.

2007-10-24 13:49:58 · answer #3 · answered by misoma5 7 · 0 0

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