Why is the base of an energy pyramid wider than the top

1 answer:

5 0

It is due to a lack of providable energy to the next trophic level of the energy pyramid. Primary consumers only obtain around 10% of energy that producers have, and the energy depletes as you move further and further up the food chain, until you reach the tertiary consumers which have the least amount of energy at their disposal, meaning there are less of them than other organisms further down the energy pyramid.

Hope this helped!

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Determine the number of moles of iodine that reacts with 50g of aluminum

frozen [14]

Answer: The correct answer is option B i.e., 2.78 mol

Explanation:

Aluminium reacts with iodine to form Aluminium iodide

$2Al(s)+3I_{2}(s) \to Al_{2}I_{6}(s)$

From the equation, it is clear that 3 moles of iodine reacts with 2 moles of Aluminium to form Aluminium iodide

We know $$No.\,of\,moles=\frac{weight}{molecular\,weight} \\$

For 2 moles of Aluminium, $2=\frac{weight}{27}$\\ $weight=2 \times 27=54g$

3 moles of Iodine reacts with 54 g of Aluminium

? moles of iodine react with 50 g of Aluminium

$=\frac{3 \times 50}{54} =2.78 mol$

8 0

3 years ago

50 pts! Please help, much appreciated (:

Korolek [52]

Answer:

because the number of constitutional confirmation , and geometric isomers goes up with each carbon atom added there are many more possible configurations and connectivities possible with decane , a 10 carbon chain , than with butane, a 4 carbon chain

4 0

2 years ago

A piece of lithium is placed on the surface of some water in a beaker. hydrogen is given off. Lithium hydroxide is formed. What

Gala2k [10]

A piece of lithium is placed on the surface of some water in a beaker. Hydrogen is given off and Lithium hydroxide is formed. The word equation would be as follows:


lithium + water→ lithium hydroxide + hydrogen

Hope this answers the question. Have a nice day.

8 0

2 years ago

sorry that answer is wrong. A chemical bond is the force that holds together the elements in a compound

olya-2409 [2.1K]

That is a true statement

8 0

2 years ago

Complete the equation C14H30 = ________ + C7H14

Gemiola [76]

Answer:

C14H30 -----> C7H14 + C2H4 +C5H10

Explanation:

3 0

2 years ago