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Marat540 [252]
3 years ago
15

In a simple food chain, a frog eats insects and a snake eats the frog. The primary role of the frog in the food chain is?

Chemistry
1 answer:
Arada [10]3 years ago
4 0

Answer:

It is clear from the above food chain that the grass occupies the first topic level which consists of producers. The second tropic level consist of primary consumers which is Insect. And the Frog assign the Third tropic level of food chain consisting of secondary consumers.Explanation:

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How is the rate of appearance of h2o related to the rate of disappearance of o2?
erastovalidia [21]
If we consider a combustion reaction of Methane:

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CH4 + 2O2 ---> 2H2O + CO2

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3 years ago
Calculate the mass, in grams, of cucl2 (mw = 134.452 g/mol) required to prepare 250.0 ml of a 6.11 % w/v cu2 (mw = 63.546 g/mol)
Sever21 [200]

6.11% w/v of Cu2+ implies that 6.11 g of Cu2+ is present in 100 ml of the solution

therefore,  250 ml of the solution would have: 250 ml * 6.11 g/100 ml = 15.275 g

# moles of Cu2+ = 15.275 g/63.546 g mole-1 = 0.2404 moles

1 mole of CuCl2 contain 1 mole of Cu2+ ion

Hence, 0.2404 moles of Cu2+ would correspond to 0.2404 moles of CuCl2

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The mass of CuCl2 required = 0.2404 moles * 134.452 g/mole = 32.32 grams

6 0
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Name the gas that the limewater in the flask is testing for.
enyata [817]

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Carbon dioxide is the answer I think.

Hope it helps...

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