What are the 10 polyatomic ions?
What are the 10 polyatomic ions?
Terms in this set (10)
- carbonate. CO₃-²
- phosphate. PO₄ -³
- chlorate. CLO₃ -¹
- Sulfate. SO₄ -²
- cynaide. CN -¹
- hydroxide. OH -¹
- acetate. C₂H₃O₂ -¹
- ammonium. NH₄+¹
What are polyatomic elements?
Polyatomic – The elements that have more than two atoms bonded by a covalent bond are referred to as polyatomic elements.
What are the 7 polyatomic ions?
Terms in this set (7)
- Nitrate. NO₃⁻
- Chlorate. ClO₃⁻
- Hydroxide. OH⁻
- Carbonate. CO₃⁻²
- Sulfate. SO₄⁻²
- Phosphate. PO₄⁻³
- Ammonium. NH₄⁺
Which of the following is a polyatomic anion?
Phosphate is polyatomic as it consists of 1P and 4 Oxygen atoms.
What are the most familiar polyatomic cations?
Terms in this set (10)
- Sulfate. SO4 2-
- Sulfite. SO3 2-
- Acetate. C2H3O2 – or CH3COO –
- Ammonium. NH4 +
- Carbonate. CO3 2-
- Hydrogen carbonate (Bicarbonate) HCO 3-
- Phosphate. PO4 3-
- Hydroxide. OH –
Is sulphate a cation or anion?
Sulfate is a sulfur oxoanion obtained by deprotonation of both OH groups of sulfuric acid. It has a role as a human metabolite, a Saccharomyces cerevisiae metabolite and a cofactor. It is a sulfur oxoanion, a sulfur oxide, an inorganic anion and a divalent inorganic anion. It is a conjugate base of a hydrogensulfate.
Is Ca 2 a cation or anion?
| Name | Formula | Other name(s) |
|---|---|---|
| Calcium | Ca+2 | |
| Chromium(II) | Cr+2 | Chromous |
| Chromium(III) | Cr+3 | Chromic |
| Copper(I) | Cu+ | Cuprous |
Why is potassium K+?
The name is derived from the english word potash. The chemical symbol K comes from kalium, the Mediaeval Latin for potash, which may have derived from the arabic word qali, meaning alkali.
Why is K+ more stable than k2+?
Answer. Answer: Atomic number of k = 19, We see that, Pottasium(k) has 1 electron in it’s outermost shell, So k+ will have, 8 outermost electrons, According to Octet rule, K+ will be more stable !.
Is K+ an acid?
K+ comes from the first column in the periodic table, so it is neutral. CO3^2- has the conjugate acid HCO3^-, which is a weak acid, therefore it is a weak base.
Is liclo4 a strong acid?
seven strong acids: HCl, HBr, HI, HNO3, H2SO4, HClO4, & HClO3 2. solutions of strong acids have a high concentration of H+. any acid that is not one of the seven strong is a weak acid (e.g. H3PO4, HNO2, H2SO3, HClO, HClO2, HF, H2S, HC2H3O2 etc.) 2.
Is F acidic or basic?
Ions can exhibit acidic or basic properties. For example, NH 4+ is acidic, and F – is basic. Salts, being strong electrolytes, dissociate completely in aqueous solution to produce the ions which they are composed of. Therefore, salt solutions can be acidic, basic or neutral.
Which of the four acid is strongest acid?
List of Strong Acids
- Hydrochloric acid (denoted by the chemical formula HCl)
- Hydrobromic acid (denoted by the chemical formula HBr)
- Hydroiodic acid or hydriodic acid (denoted by the chemical formula HI)
- Sulfuric acid (denoted by the chemical formula H2SO4)
- Nitric acid (denoted by the chemical formula HNO3)
Is HF a weak acid?
Binary acids are certain molecular compounds in which hydrogen is combined with a second nonmetallic element; these acids include HF, HCl, HBr, and HI. HCl, HBr, and HI are all strong acids, whereas HF is a weak acid.
Why HF is a weak acid?
Hydrofluoric acid (HF) is chemically classified as a weak acid due to its limited ionic dissociation in H 2 O at 25°C [26]. In water at equilibrium, non-ionized molecules, HF, remain present and provides slowly H + and F − to form F − ·H 3 O + [26, 27].
Why is HF unreactive?
1. HF(aq) is a very reactive, weak acid. The great attraction that fluorine has for most other atoms is the cause of HF(aq) being a weak acid. This high attraction of fluorine for most other atoms gives rise to a very strong H—F bond that is not broken when HF dissolves in water.