Question

Поставьте коэффициенты и определите типы следующих химических реакций: FeCl3+ NaOH=Fe(OH)3+NaCl; Ca+H2O+Ca(OH)2+H2(стрелочка вверх) Fe(OH)3=Fe2O3+H2O NaOH+H3PO4=Na3PO4+H2O

Answer 1

FeCl3+ 3NaOH=Fe(OH)3+3NaCl обмен Ca + 2 H2O = Ca(OH)2 + H2 замещение 2 Fe(OH)3 = Fe2O3 + 3 H2O разложение 3 NaOH + H3PO4 = Na3PO4 + 3 H2O обмен

Answer 2

Chemical Reactions and their Types

Let's analyze the given chemical reactions and determine their types.

1. FeCl3 + NaOH = Fe(OH)3 + NaCl: - This is a double displacement reaction, also known as a precipitation reaction. - In this reaction, FeCl3 (iron(III) chloride) reacts with NaOH (sodium hydroxide) to form Fe(OH)3 (iron(III) hydroxide) and NaCl (sodium chloride). - The balanced chemical equation for this reaction is: FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl.

2. Ca + H2O = Ca(OH)2 + H2 (↑): - This is a single displacement reaction, also known as a redox reaction. - In this reaction, calcium (Ca) reacts with water (H2O) to form calcium hydroxide (Ca(OH)2) and hydrogen gas (H2