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alexandr402 [8]
3 years ago
13

Select the correct answer.

Chemistry
2 answers:
sergejj [24]3 years ago
4 0
D.) black text on a yellow background. There is much more contrast in the colors black and yellow than the other choices.
Igoryamba3 years ago
4 0
D black text on yellow background
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3 0
3 years ago
This equation represents a:
Leto [7]

Answer : The correct option is, (D) double replacement reaction

Explanation :

Synthesis reaction : A chemical reaction where multiple substances or reactants combine to form a single product.

It is represented as,

X+Y\rightarrow XY

Decomposition reaction : A chemical reaction in which larger reactant decomposes to give two or more than two products.

It is represented as,

AB\rightarrow A+B

Single replacement reaction : A chemical reaction in which the more reactive element replace the less reactive element.

It is represented as,

A+BC\rightarrow AC+B

In this reaction, A is more reactive element and B is less reactive element.

Double replacement reaction : It is a type of chemical reaction where a positive cation and a negative anion of two reactants exchange places to form two new products.

It is represented as,

XY+AB\rightarrow XB+AY

(X and A are the cations, Y and B are the anions)

The given reaction is:

2NaCl(aq)+CuSO_4(aq)\rightarrow Na_2SO_4(aq)_CuCl_2(aq)

This reaction is a double displacement reaction.

6 0
3 years ago
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