Redox means reduction and oxidation. It can be defined by loss and gain of oxygen or by loss and gain of electrons.

Chemistry

1 answer:

Vlad [161]4 years ago

7 0

More useful <span>by loss and gain of electrons, because many redox reactions do not include any oxygen</span>

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What will most likely happen in the absence of a cell membrane?

Zielflug [23.3K]

<h2>Answer:</h2>

The correct answer is option D which is substances will pass in and out of the cell in an uncontrolled manner.

<h3>Explanation:</h3>

Cell membrane is outer organelle in the cell, it is responsible for the transport of materials into and out to the cell through osmosis and active transport.
In the absence of the cell membrane, there will not be control of transport of a materials to the cell.
Energy production is the task of mitochondria and food storage is the function of vacuoles.
Photosynthesis takes place on the chloroplasts.

3 0

3 years ago

Read 2 more answers

Calculate ΔHo for the following reaction ussing the given bond dissociation energiesCH4(g) + 2O2(g) --> CO2(g) + 2H2O(g)BOND

Mazyrski [523]

Answer:

The ΔH° for the following reaction is -794 kJ, hence exothermic reaction,

Explanation:

$CH_4(g) + 2O_2(g)\rightarrow CO_2(g) + 2H_2O(g) ,$ ΔH° = ?

We are given with:

$\Delta H_{O-O}=142 kJ/mol$

$\Delta H_{O=O}=498 kJ/mol$

$\Delta H_{H-O}=459 kJ/mol$

$\Delta H_{C-H}=411 kJ/mol$

$\Delta H_{C-O}=358 kJ/mol$

$\Delta H_{C=O}=799 kJ/mol$

ΔH° =

(Energies required to break bonds on reactant side) - (Energies released on formation of bonds on product side)

$\Delta H^o=(1 mol\times 4\times \Delta H_{C-H}+2 mol\times 1\times \Delta H_{O=O})-(1 mol\times 2\times \Delta H_{C=O}+2 mol\times 2\times\Delta H_{H-O})$