synthesis reactions

what is a synthesis reaction

A synthesis reaction occurs when two or more reactants combine to form a single product. A synthesis reaction can be represented by the general equation: A+BC In this equation, the letters A and B represent the reactants that begin the reaction, and the letter C represents the product that is synthesized in the reaction. The arrow shows the direction in which the reaction occurs. Q: What is the chemical equation for the synthesis of nitrogen dioxide (NO2 ) from nitric oxide (NO) and oxygen (O2 )? A: The equation for this synthesis reaction is: 2NO + O2 2NO2

examples of synthesis reactions

Another example of a synthesis reaction is the combination of sodium (Na) and chlorine (Cl) to produce sodium chloride (NaCl). This reaction is represented by the chemical equation: 2Na + Cl2 2NaCl Sodium is a highly reactive metal, and chlorine is a poisonous gas. Both elements are pictured in the Figure 1.1. The compound they synthesize has very different properties. Sodium chloride is commonly called table salt, which is neither reactive nor poisonous. In fact, salt is a necessary component of the human diet.

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instructional diagrams

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questions

which of the following is not a synthesis reaction?

a) 2h2 + o2  2h2o

b) 2co + o2  2co2

c) 3h2 + n2  2nh3

-->  d) mg + 2hcl  mgcl2 + h2

the chemical equation 2no + o2 2no2 represents a synthesis reaction.

-->  a. true

b. false

the product of a synthesis reaction can be an element or a compound.

a. true

-->  b. false

examples of synthesis reactions include

-->  a) 2k + cl2  2kcl

b) zn + 2hcl  zncl2 + h2

c) cl2 + 2kbr  2kcl + br2

d) two of the above

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