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Stells [14]
3 years ago
6

What is the best description of the role of decomposers in the carbon cycle?

Chemistry
2 answers:
OleMash [197]3 years ago
7 0

Answer:

A

Explanation:

I got done taking the quiz If I could Show U I would but the answer is a

Oksanka [162]3 years ago
7 0

Answer:

The answer is "They release the carbon that remains in the bodies of dead organisms.".

Explanation:

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Calculate ΔHrxn for the following reaction: 5C(s) 6H2(g)→C5H12(l) Use the following reactions and given ΔH values: C5H12(l) 8O2(
Setler79 [48]

Answer: its 4xb236.52

Explanation:

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2 years ago
Does anyone have the answer sheet for all of Cell energy cycle gizmo part c?
FinnZ [79.3K]

Answer:

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3 years ago
How do you work out question 1a?
Sliva [168]

Answer:

-125 kJ

Explanation:

You calculate the energy required to break all the bonds in the reactants. Then you subtract the energy to break all the bonds in the products.

                     H₂C=CH₂   +    H₂ ⟶    H₃C-CH₃

Bonds:       4C-H + 1C=C     1H-H     6C-H + 1C-C

D/kJ·mol⁻¹:  413       612        436       413      347

The formula relating ΔHrxn and bond dissociation energies (D) is

ΔHrxn = Σ(Dreactants) – Σ(Dproducts)

(Note: This is an exception to the rule. All other thermochemical reactions are “products – reactants”. With bond energies, it’s “reactants – products”. The reason comes from the way we define bond energies.)

<em>For the reactant</em>s:

Σ(Dreactants) = 4 × 413 + 1 × 612 + 1 × 436 = 2700 kJ

<em>For the products:</em>

Σ(Dproducts) = 6 × 413 + 1 × 347 = 2825 kJ

<em>For the system</em> :

ΔHrxn = 2700 - 2825 = -125 kJ

4 0
3 years ago
When exothermic reactions occur, ______________.
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Answer:

heat energy is released into the surrounding

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What is the relationship between the number of chromosomes in sperm/egg cells compared to regular cells?
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