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Murrr4er [49]
4 years ago
5

2) John cut a pineapple into 9-millimeter-wide cubes. How many

Chemistry
2 answers:
Maurinko [17]4 years ago
8 0

Answer:

I think the answer is 729 cubic millimeters.

Sidana [21]4 years ago
4 0
729 cubic millimeters
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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 :

\tt \dfrac{1}{2}\times 1.5=0.75

mass CO₂ :

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

7 0
3 years ago
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(there are 3 quetions) how is heat being transfered in:
myrzilka [38]

Answer:

Since I already answered the first two I will tell you the third one!

In general, the radiation heat transfer from one surface to another is the radiation leaving the first surface for the other minus that arriving from the second surface. Radiation heat transfer is mediated by electromagnetic radiation, known as thermal radiation, that arises due to the temperature of a body.

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3 years ago
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What is the solution to the problem expressed to the correct number of significant figures
quester [9]

I don't know what the problem is, but here are some rues to help you out:

  1. All non-zero figures are significant
  2. When a zero falls between non-zero digits, that zero is significant.
  3. When a zero falls after a decimal point, that zero is significant.
  4. When multiplying and dividing significant figures, the answer is limited to the number of sig figs equal to the least number of sig figs in the problem.
  5. When adding and subtracting, the answer is limited to the number of decimal places in the number with the least number of decimal places.
4 0
4 years ago
Select all that apply. The electron configurations of some elements are given. Based on the electron configurations which elemen
erma4kov [3.2K]

Answer:

correct option: A and D

Explanation:

generally element from d block can for ion with multiple charge and having incomplete outershell means element do not have fullfiled or half filed orbital because in these case it takes more energy to remove valence shell electron.

8 0
3 years ago
What natural resources are used to make chloroquine?
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In areas where resistance is present, otherantimalarials<span>, such as </span>mefloquine<span> or atovaquone, may be used instead. The Centers for Disease Control and Prevention recommend against treatment of malaria with chloroquine alone due to more effective combinations.</span>
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