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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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Is the sweetened iced tea an electrolyte mixture?
Arada [10]

Answer:

Yes it is

Explanation:

3 0
2 years ago
Read 2 more answers
During the combustion of 2.00 g of coal, the temperature of 500 g of water inside the calorimeter increased from 25.0°c to 43.7°
pantera1 [17]
Answer is: 39,083kJ.
m(coal) = 2,00g.
m(water) = 500g.
ΔT = 43,7°C - 25°C = 18,7°C, <span>difference at temperatures.</span>
c(water) = 4,18 J/g·°C, <span>specific heat of water
</span>Q = m(water)·ΔT·c(water), heat of reaction.
Q = 500g·18,7°C·4,18J/g·°C.
Q = 39083J = 39,083kJ.
6 0
3 years ago
pyrite is a mineral composed of 46.5 mass % iron and 53.5 mass % sulfur. determine the empirical formula for calcocite.
padilas [110]

The empirical formula for pyrite is FeS2.

HOW TO CALCULATE EMPIRICAL FORMULA:

  • The empirical formula represents the simplest whole number ratio of constituents element of a compound. The empirical formula of pyrite can be calculated as follows:

46.5 mass % Fe = 46.5g of Fe

53.5 mass % S = 53.5g of S

  • Next, we divide each element's mass value by its molar mass

Fe = 46.5g ÷ 56g/mol = 0.83mol

S = 53.5g ÷ 32g/mol = 1.67mol

  • Next, we divide each mole value by the smallest (0.83mol)

Fe = 0.83mol ÷ 0.83 = 1

S = 1.67mol ÷ 0.83 = 2.014

Approximately, the ratio of Fe to S is 1:2. Therefore, the empirical formula of pyrite is FeS2.

Learn more at: brainly.com/question/14044066?referrer=searchResults

3 0
1 year ago
Please help asap, thank you!
yKpoI14uk [10]
The answer is coastal upwelling.
6 0
3 years ago
Molarity formula what is the molarity of a solution in which 3 moles of nacl is dissolved in 1.5 kg of water
Igoryamba
Molarity is..
1.5 kg H₂O = 1.5L H₂O
So...
\frac{moles}{volume} = molarity
\frac{3.0 mol}{1.5L} = molarity
2M = molarity
7 0
3 years ago
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