Identify the decomposition reaction. 2nh3 + h2so4 ⟶ (nh4)2so4 2nabr + ca(oh)2 ⟶ cabr2 + 2naoh 2 no2 ⟶ 2 o2 + n2 3pb + 2h3po4 ⟶ 3
2 answers:
Answer : The correct option is,
Explanation :
Decomposition reaction : It is a type of reaction in which a single larger compound decomposes to give two or more smaller molecules as a product.
The general representation of decomposition reaction is :
From the given options,
this reaction a decomposition reaction in which a single nitrogen dioxide decomposes to give oxygen gas and nitrogen gas as a product.
While the other reactions,
this reaction is a combination reaction in which the two or more molecules combine to form a larger single molecule as a product.
this is a double displacement reaction in which the cation and the anion of the two reactant exchange their places to give two another compounds as a product.
this is a single displacement reaction in which the more reactive metal displaces the least reaction metal from its compound.
Hence, the decomposition reaction will be,
You might be interested in
Answer: The density of the material is 2.66 g/mL and it is likely this is made of Aluminum
Explanation:
The first step to know the material of the chunk of metal is to calculate its density. The general formula for density is P (density) = . Moreover, in this case, it is known the mass is 37.28 g, but the volume is not directly provided. However, we know the water in the graduated cylinder had a volume of 20.0 mL and this increased to 34.0 mL when the chunk of metal is added, this means the volume of the metal is 14 mL (34.0 mL - 20.0 mL = 14 mL). Now let's calculate the density:
This means the density of this metal is 2.66 g/mL, which can be rounded as 2. 7 g/mL, and according to the chart, this is the density of aluminum. Therefore, this material of this chunk is aluminum.