Question

Разделить вещества по классам: (соли, кислоты, основания, оксиды) Cu(OH)2 Na2O KNO3 H2SO4 MgO HCl ZnSO4 Fe(OH)3

Answer 1

СОЛИ: H2SO4,  ZnSO4, 

КИСЛОТЫ:KNO3,  HCl,

ОСНОВАНИЯ:  Cu(OH)2,  Fe(OH)3
ОКСИДЫ: Na2O,  MgO,

Answer 2

соли:KNO3,ZnSO4,

кислоты:H2SO4,HCl,

основания:Cu(OH)2, Fe(OH)3

окисды:Na2O,MgO,

Answer 3

Classifying Substances

To classify the given substances into salts, acids, bases, and oxides, we can analyze their chemical properties and composition.

- Salts: Salts are compounds formed by the reaction of an acid with a base, where the hydrogen ion of the acid is replaced by a metal ion or another positive ion. They are typically composed of a cation (positively charged ion) and an anion (negatively charged ion).

- Acids: Acids are substances that donate protons or accept pairs of electrons. They typically have a sour taste and can turn blue litmus paper red.

- Bases: Bases are substances that can accept protons or donate pairs of electrons. They typically have a bitter taste and feel slippery.

- Oxides: Oxides are chemical compounds that contain at least one oxygen atom and one other element in its chemical formula.

Let's classify the given substances based on these properties.

Classification of Substances

- Cu(OH)2: This is a base, specifically a hydroxide. It contains the hydroxide ion (OH-) and is a source - Na2O: This is an oxide. It contains oxygen and sodium ions, making it an ionic compound. - KNO3: This is a salt. It is composed of potassium ions (K+) and nitrate ions (NO3-), formed by the reaction of a base (potassium hydroxide) with an acid (nitric acid) as per source - H2SO4: This is an acid. It is sulfuric acid, which is a strong acid as per source - MgO: This is an oxide. It contains magnesium and oxygen, making it an ionic compound. - HCl: This is an acid. It is hydrochloric acid, a strong acid as per source - ZnSO4: This is a salt. It is zinc sulfate, formed by the reaction of zinc oxide (a base) with sulfuric acid (an acid) as per source - Fe(OH)3: This is a base, specifically a hydroxide. It contains the hydroxide ion (OH-) and is a source

Based on the chemical properties and composition of the given substances, they can be classified as follows: - Salts: Na2O, KNO3, ZnSO4 - Acids: H2SO4, HCl - Bases: Cu(OH)2, Fe(OH)3 - Oxides: Na2O, MgO

This classification is based on the chemical properties and composition of the substances provided.