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marin [14]
4 years ago
8

"the substances that are formed by a chemical change are called the" "the state of matter in which a material has a definite vol

ume and a definite shape is the"
Chemistry
1 answer:
Triss [41]4 years ago
7 0

The substances that are formed by a chemical change are called the product.

While the state of matter in which a material has a definite volume and a definite shape is the solid.

In a chemical reaction, the reactant on the left hand side undergoes a chemical change and gives product.

While in a solid state, a material has a definite volume and a definite shape is the solid.

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Write net ionic equations for the reactions that take place when aqueous solutions of the following substances are mixed: a. sod
strojnjashka [21]

Answer:

A. H₃O⁺ + CN⁻ → H₂O + HCN

B. OH⁻ + NH₄⁺ → NH₃ + H₂O

C. CN⁻ + NH₄⁺ → HCN + NH₃

D. HSO₄⁻ + CH₃COO⁻ → SO₄²⁻ + CH₃COOH

E. ClO⁻ + NH₃ → NO REACTION

Explanation:

Part A.

Sodium cyanide consist of Na⁺ and CN⁻ ions. CN⁻ is a conjugate base and accept H⁺ ion from nitric acid to form HCN (hydrogen cyanide).

Part B.

Ammonium chloride consist of NH₄⁺ and Cl⁻ ions. Sodium hydroxide is a strong base dissociate completely in solution convert into ammonium hydroxide and sodium chloride.

Part C.

Sodium cyanide consist of counter ion Na⁺ . CN⁻ combined with ammonium bromide to form ammonium cyanide and sodium bromide.

Part D.

Potassium hydrohen sulphate consist of potassium counter and hydrogen sulphate ion. Hydrogen sulphate combined with acetate ion to form acetic acid and sulphate ion.

Part E.

There have no reaction because hypochlorite and ammonia both are bases.

8 0
4 years ago
Explain why Statutes coated with white lead on long exposure to atmosphere
g100num [7]

Answer:

Its because once you go black, there's no going back

Explanation:

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Explanation:

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