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slava [35]
4 years ago
9

10. Describe the structural differences between an atom and an ion. |

Chemistry
2 answers:
Fudgin [204]4 years ago
4 0

Answer:

Atoms are neutral particles, ions have a charge.

Explanation:

Atoms are neutral because they have an equal number of protons (+) and electrons (-).

Ions are charged particles which are formed when atoms either gain or lose electrons. When atoms gain or lose electrons they become more stable.

GREYUIT [131]4 years ago
3 0

Answer:

Google the answers...and paraphrase it

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Determine whether the following statements describe chemical or physical properties: (a) Oxygen gas supports combustion. (b) Fer
sdas [7]

Explanation:

A change that does not cause any change in chemical composition of a substance is known as a physical change.

For example, mass, density, volume etc are all physical changes.

On the other hand, a change that brings change in chemical composition of a substance is known as chemical change.

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Hence, following statements are identified as chemical or physical changes as follows.

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(b) Fertilizers help to increase agricultural production : Chemical change

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7 0
3 years ago
The free energy for the oxidation of glucose to CO2 and water is -686 kcal/mol, and the free energy for the reduction of NAD+ to
vitfil [10]

Answer:

Most of free energy available from oxidation of the glucose remains in pyruvate.

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Glucose + 2 NAD⁺ + 2 ADP + 2 Pi ⇒ 2 Pyruvate + 2 NADH + 2 H⁺ + 2ATP

Glucose is oxidized to give 2 molecules of pyruvate and 2 molecules of NADH and ATP (Energy currency).

<u>Though the free energy of oxidation of glucose is high but only 2 NADH is formed because the most of the free energy that is being released from the oxidation of glucose remains in the pyruvate which is produced in the reaction and thus only 2 molecules are formed.</u>

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Is magnesium fluoride ionic or covalent
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lonic

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MgF2 ( Magnesium fluoride ) is ionic.

∵∴∵∴∵∴∵∴∵      

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