enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Zinc sulfate - Wikipedia

    en.wikipedia.org/wiki/Zinc_sulfate

    Aqueous solutions of zinc sulfate consist of the aquo complex [Zn(H 2 O) 6] 2+. Zinc sulfate is produced by treating virtually any zinc-containing material (metal, minerals, oxides) with sulfuric acid. [4] Specific reactions include the reaction of the metal with aqueous sulfuric acid: Zn + H 2 SO 4 + 7 H 2 O → ZnSO 4 ·7H 2 O + H 2

  3. Single displacement reaction - Wikipedia

    en.wikipedia.org/wiki/Single_displacement_reaction

    Single displacement reaction. A single-displacement reaction, also known as single replacement reaction or exchange reaction, is an archaic concept in chemistry. It describes the stoichiometry of some chemical reactions in which one element or ligand is replaced by atom or group. [ 1 ][ 2 ][ 3 ] It can be represented generically as: where either.

  4. Lucas' reagent - Wikipedia

    en.wikipedia.org/wiki/Lucas'_reagent

    Lucas' reagent. Lucas test: negative (left) with ethanol and positive with t -butanol. "Lucas' reagent" is a solution of anhydrous zinc chloride in concentrated hydrochloric acid. This solution is used to classify alcohols of low molecular weight. The reaction is a substitution in which the chloride replaces a hydroxyl group.

  5. Marsh test - Wikipedia

    en.wikipedia.org/wiki/Marsh_test

    Reduction: As 2 O 3 + 12 e − + 6 H + → 2 As 3− + 3 H 2 O. Overall, we have this reaction: As 2 O 3 + 6 Zn + 6 H + → 2 As 3− + 6 Zn 2+ + 3 H 2 O. In an acidic medium, As 3− is protonated to form arsine gas (AsH 3), so adding sulphuric acid (H 2 SO 4) to each side of the equation we get: As 2 O 3 + 6 Zn + 6 H + + 6 H 2 SO 4 → 2 As 3 ...

  6. Neutralization (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Neutralization_(chemistry)

    The same equation relating the concentrations of acid and base applies. The concept of neutralization is not limited to reactions in solution. For example, the reaction of limestone with acid such as sulfuric acid is also a neutralization reaction. [Ca,Mg]CO 3 (s) + H 2 SO 4 (aq) → (Ca 2+, Mg 2+)(aq) + SO 2− 4 (aq) + CO 2 (g) + H 2 O

  7. Sulfuric acid - Wikipedia

    en.wikipedia.org/wiki/Sulfuric_acid

    NaCl + H 2 SO 4 → NaHSO 4 + HCl. Aluminium sulfate, also known as paper maker's alum, is made by treating bauxite with sulfuric acid: 2 AlO(OH) + 3 H 2 SO 4 → Al 2 (SO 4) 3 + 4 H 2 O. Sulfuric acid can also be used to displace weaker acids from their salts. Reaction with sodium acetate, for example, displaces acetic acid, CH 3 COOH, and ...

  8. Standard electrode potential (data page) - Wikipedia

    en.wikipedia.org/wiki/Standard_electrode...

    Ga(s) + 3 OH −-1.22: 3 [6]: 788 Ti Ti 2 O 3 (s) + 2 H + + 2 e −: ⇌ 2TiO(s) + H 2 O-1.23 2 [6]: 792 Zn Zn(OH) 2− 4 + 2 e −: ⇌ Zn(s) + 4 OH −-1.199 2 [10] Mn Mn 2+ + 2 e −: ⇌ Mn(s) -1.185 2 [10] Fe Fe(CN) 4− 6 + 6 H + + 2 e −: ⇌ Fe(s) + 6HCN(aq) -1.16 2 [12] C: C(s) + 3 H 2 O (l) + 2 e −: ⇌: CH 3 OH (l) + 2 OH −-1. ...

  9. Amphoterism - Wikipedia

    en.wikipedia.org/wiki/Amphoterism

    The water molecule is amphoteric in aqueous solution. It can either gain a proton to form a hydronium ion H 3 O +, or else lose a proton to form a hydroxide ion OH −. [5] Another possibility is the molecular autoionization reaction between two water molecules, in which one water molecule acts as an acid and another as a base.