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Alex_Xolod [135]
3 years ago
10

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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geniusboy [140]

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4 0
3 years ago
Calculate the concentration of all ions present in each of the following solutions of strong electrolytes. a. 0.100 mole of Ca(N
pickupchik [31]

Answer:

[Ca²⁺] = 1M

[NO₃⁻] = 2M

Explanation:

Calcium nitrate dissociates in water as follows:

Ca(NO₃)₂ ⇒ Ca²⁺ + 2NO₃⁻

The moles of Ca²⁺ can be found using the molar relationship between Ca(NO₃)₂ and Ca²⁺

(0.100mol Ca(NO₃)₂) (Ca²⁺ /Ca(NO₃)₂) = 0.100 mol Ca²⁺

The concentration of Ca²⁺  is then:

[Ca²⁺] = n/V = (0.100mol)/(100.0mL) x (1000ml)/(1L) = 1M

Similarly, moles of NO₃⁻ can be found using the molar relationship between Ca(NO₃)₂ and NO₃⁻:

(0.100mol Ca(NO₃)₂) (2NO₃⁻/Ca(NO₃)₂) = 0.200 mol NO₃⁻

The concentration of NO₃⁻ is then:

[NO₃⁻] = (0.200mol)/(100.0mL) x (1000ml)/(1L) = 2M

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3 years ago
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vova2212 [387]

Answer:

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