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RUDIKE [14]
3 years ago
7

What days did the Catholic Church h celebrate with fireworks

Chemistry
2 answers:
andrew-mc [135]3 years ago
8 0
They used fireworks in hundreds of Saints' days celebrations to bring a "magical" touch, during the Renaissance many innovations were made in the field of pyrotechnics.
inessss [21]3 years ago
7 0

Answer:

ok

Explanation:

The Catholic Church used to celebrate Saint´s days with firework as a way to manipulate the ignorant people to bring a touch of officially sanctioned  magic.

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The steam rotates a turbine that activates a generator, which produces electricity. Many power plants still use fossil fuels to boil water for steam. Geothermal power plants, however, use steam produced from reservoirs of hot water found a couple of miles or more below the Earth's surface.
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3 years ago
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An oxide of nitrogen contains 30.45 mass % N.
N76 [4]

An oxide of nitrogen contains 30.45 mass % N, if the molar mass is 90± 5 g/mol the molecular formula is N₂O₄.

<h3>What is molar mass?</h3>

The molar mass of a chemical compound is determined by dividing its mass by the quantity of that compound, expressed as the number of moles in the sample, measured in moles. A substance's molar mass is one of its properties. The compound's molar mass is an average over numerous samples, which frequently have different masses because of isotopes.

<h3>How to find the molecular formula?</h3>

The whole-number multiple is defined as follows.

Whole-number multiple = \frac{molar mass (g/mol)}{empirical formula mass (g/mol)}

The empirical formula mass is shown below.

Mw of empirical formula = Mw of N+ 2 x (Mw of O)

                                      = 14.01 g/mol + 2 x (16.00 g/mol)

                                      = 46.01 g/mol

With the given molar mass or the molecular formula mass, we can get the whole-number multiple for the compound.

Whole-number multiple = \frac{90 g/mol }{46.01 g/mol} ≈ 2

Multiplying the subscripts of NO2 by 2, the molecular formula is N(1x2)O(2x2)= N2O4.

To learn more about molar mass visit:

brainly.com/question/12127540

#SPJ4

5 0
2 years ago
Where does the production of the following drugs take place?
aleksandr82 [10.1K]
Takes place in USA and Mexico
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3 years ago
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_______ are prophylactic agents used to treat bronchoconstriction.
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Bronchodilators <span>are prophylactic agents used to treat bronchoconstriction.</span>
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3 years ago
How many nucleons are in an Iodine element? Okay
Lady_Fox [76]

Answer:

there are 74

Explanation:

3 0
2 years ago
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