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3 years ago

The reaction 2NO(g) + O2(g) → 2NO2(g) is a synthesis reaction. True False

Chemistry

2 answers:

Trava [24]3 years ago

7 0

true

not sure though

but I think

stepan [7]3 years ago

3 0

Answer:

True

Explanation:

Chemical reactions are broadly classified as:

1) Synthesis or combination reaction in which two or more substances react to form a single product

2) Decomposition reaction in which a complex substance breaks down into simpler molecules

3) Combustion reaction in which a substance like a hydrocarbon reacts with oxygen to form an carbon dioxide and water

4) Single displacement reaction in which a more reactive element replaces a less reactive element

5) Double displacement reaction which involves exchange of ions in solution

The given reaction is:

2NO + O2 → 2NO2

Here two substances combine to form a single molecule. This is an example of a synthesis reaction.

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CK-12 Boyle and Charles's Laws if Mrs. Pa pe prepares 12.8 L of laughing gas at 100.0 k Pa and -108 °C and then she force s the

nirvana33 [79]

Answer:

The answer to your question is P2 = 2676.6 kPa

Explanation:

Data

Volume 1 = V1 = 12.8 L Volume 2 = V2 = 855 ml

Temperature 1 = T1 = -108°C Temperature 2 = 22°C

Pressure 1 = P1 = 100 kPa Pressure 2 = P2 = ?

Process

- To solve this problem use the Combined gas law.

P1V1/T1 = P2V2/T2

-Solve for P2

P2 = P1V1T2 / T1V2

- Convert temperature to °K

T1 = -108 + 273 = 165°K

T2 = 22 + 273 = 295°K

- Convert volume 2 to liters

1000 ml -------------------- 1 l

855 ml -------------------- x

x = (855 x 1) / 1000

x = 0.855 l

-Substitution

P2 = (12.8 x 100 x 295) / (165 x 0.855)

-Simplification

P2 = 377600 / 141.075

-Result

P2 = 2676.6 kPa

3 0

3 years ago

Which of the following is an example of a model? PV=nRT, Geographical map, I believe that aliens exist, all of the above.

aleksandrvk [35]

Answer: The correct answer is geographical map.

Explanation:

Model is defined as the three dimensional representation of a proposed structure in a smaller scale.

For the given options:

Option 1: PV = nRT

This is a proposed law. This law is known as ideal gas law. A law is defined as the rule which defined a correct procedure. For any gas behaving ideally, this law is used.

Option 2: Geographical map

Map is defined as the diagrammatic representation of an area of land or sea which also shows physical features, roads, cities etc..

A 3-D model can be prepared for geographical map.

Option 3: I believe that aliens exist

This is a hypothetical statement. It is a smart guess by the means of set of assumptions and observations. For its validation, we need to conduct some experiments.

Hence, the correct answer is geographical map.

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2 years ago

Read 2 more answers

Consider the unbalanced equation for aluminum and oxygen producing aluminum oxide: Al + O₂ → Al₂O₃. Which of the following shows

DIA [1.3K]

Answer:

A answer is correct that help

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3 years ago

Hydrogen ions cannot exist alone but they exist after combining with water molecules true or false

juin [17]