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juin [17]
3 years ago
5

Energy pyramid worksheet

Chemistry
1 answer:
Taya2010 [7]3 years ago
6 0

Answer:

From top to bottom coyote, crow, squirrel, then acorn

Explanation:

The coyote has the least amount of energy and its the biggest predator so it belongs at the top. The crows eat squirrels and the squirrels eat acorns.

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Which of the following ions is formed when the positive hydrogen ions from an acid bond to water molecules? он- ООН- он20* ОНО*​
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Answer:

2ND ONE

Explanation:

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vesna_86 [32]
The C stands for Specific Heat
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How many moles of carbon dioxide gas should be produced when 10.0 g of C2H6 are combusted at STP?
Finger [1]

Answer:

                    0.665 moles of CO₂

Explanation:

                     The balance chemical equation for the combustion of Ethane is as follow:

                            2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Step 1: <u>Calculate moles of C₂H₆ as;</u>

                              Moles  =  Mass  /  M.Mass

Putting values,

                              Moles  =  10.0 g / 30.07 g/mol

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Step 2: <u>Calculate Moles of CO₂ as;</u>

According to balance chemical equation,

                    2 moles of C₂H₆ produced  =  4 moles of CO₂

So,

             0.3325 moles of C₂H₆ will produce  =  X moles of CO₂

Solving for X,

                      X  =  0.3325 mol × 4 mol ÷ 2 mol

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3 0
3 years ago
5. A plane starting from rest is accelerated to its takeoff velocity of 75 m/s during a 5
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Answer:

answer is 14

Explanation:

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8 0
2 years ago
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Answer:

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Na becomes Na+

Ba becomes Ba +2

Mg becomes Mg+2

Explanation:

please mark brailiest

6 0
3 years ago
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