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zaharov [31]
3 years ago
10

Resonance in air columns is used in which of these musical Instruments?

Chemistry
2 answers:
AnnZ [28]3 years ago
5 0
Resonance in air columns is used in a variety of musical woodwind instruments. Something like a flute for example uses resonance to make sound. Not sure what instruments you are talking about unless you provide a list.
Reptile [31]3 years ago
3 0

Answer: Trumpets makes the most sense

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What is the empirical formula of the compound that is 25.3% magnesium and 74.7% chlorine
Margarita [4]

Answer: MgCl_2

Explanation:

25.3% Mg

74.7% Cl

First step: change % to g

25.3g Mg

74.7g Cl

Second step: calculate g/mol of each compound. You can do this by using the atomic mass.

25.3gMg(\frac{1mol}{24.30g})=1.04mol

74.7gCl(\frac{1mol}{35.45g} )=2.11mol

Third step: determine the lowest number and divide everything by it. Of the result, extract whole number only.

Mg=\frac{1.04}{1.04} =1

Cl=\frac{2.11}{1.04}=2

Fourth step: Write each compound with their respective number below.

This empirical formula should be: MgCl_2

4 0
3 years ago
The orbit of a planet is an ellipse with the sunat one of the foci.. This is Kepler's........ second law third law first law​
Svetradugi [14.3K]

Answer:

its keplers first law

Explanation:

answer from gauth math

6 0
3 years ago
If the volume occupied by 0.500 mol of nitrogen gas at 0°C is 11.2 L, then the volume occupied by 2.00 mol of nitrogen gas at th
Paraphin [41]
Avagadros law states that volume of gas is directly proportional to number of moles of gas at constant pressure and temperature.
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hodyreva [135]
Germanium is classified as a metalloid. 
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morpeh [17]
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The only reason other metals tarnish, such as copper, silver, steel/iron, is

because they're freely reacting with air, to produce a metal oxide surface layer. </span>
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4 years ago
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