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nata0808 [166]
3 years ago
14

A transverse wave moves a medium at an abtuse angle to the wave , true or false ?​

Chemistry
1 answer:
skelet666 [1.2K]3 years ago
4 0

Answer:

True! A transverse wave does move a medium at an obtuse angle to the wave!!

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Which of the following would not be classified as a mineral?
Setler79 [48]
B. a sugar crystal

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How many grams of carbon dioxide are produced when 16.0
Kobotan [32]

Mass of CO₂ = 33 g

<h3>Further explanation  </h3>

Complete combustion of Hydrocarbons with Oxygen will be obtained by CO₂ and H₂O compounds.  

If O₂ is insufficient there will be incomplete combustion produced by CO and H and O  

Reaction

CH₄ + 2O₂⇒CO₂ + 2H₂O

mol CH₄ :

\tt =\dfrac{16}{16}=1

mol O₂ :

\tt =\dfrac{48}{32}=1.5

A method that can be used to find limiting reactants is to divide the number of moles of known substances by their respective coefficients

\tt CH_4:O_2=\dfrac{1}{1}:\dfrac{1.5}{2}=1:0.75

Because O₂ ratio smaller then O₂ becomes the limiting  reactants

So mol CO₂ from limiting reactants

mol CO₂ :

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mass CO₂ :

\tt mass=mol\times MW=0.75\times 44=33~g

7 0
3 years ago
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The combustion reaction described in part (b) occurred in a closed room containing 5.56 10g of air
vagabundo [1.1K]

Answer:

Explanation:

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C₂H₅OH(l) + 3O₂(g) ⇒ 2CO₂(g) + 3H₂O(g)

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That would be 1 mol reacting to release of ethanol,

⇒ -1270 kJ of heat

Now,

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ΔT= T₂ - T₁

T₂ =  ΔT +  T₁

T₂ = 836.88 °C + 21.7°C

T₂ = 858.58 °C

Therefore, the final temperature of the air in the room after combustion is 858.58 °C

7 0
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A. Bacteria are stored in the lymph nodes
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