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Trava [24]
3 years ago
12

Give instructions and/or directions as required in the following situations. To a new teacher in your school/college who is stan

ding at the administrative block and wants to go to the library.
2. To a new teacher in your school/college who is standing at the administrative block and wants to go to the library.

3. To your colleague regarding keeping his work area clean.

​
Chemistry
1 answer:
hram777 [196]3 years ago
5 0

Answer:

is this chemistry question

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I need help. ASAP! Look at the picture below. (3)
Tanya [424]

I believe the answer would be D.

Sodium loses an electron and chlorine gains an electron.

3 0
3 years ago
Which one of the following is most likely to lose electrons when forming an ion?
otez555 [7]

Answer:

Option A) Na

Explanation:

From the options given above, sodium (Na) is most likely to lose electron to form ion

Na is a group 1 metal. Metals form ions by losing electron(s).

From the options given above, only Na is a metal and so it is most likely to form ion by losing electron

7 0
3 years ago
Define Kelvin's Temperature. ​
sattari [20]

Answer:

Is an absolute temperature scale with zero at absolute zero

6 0
3 years ago
What sort of nucleophile does NADH supply?
Elden [556K]

Answer:

Hydride ion

Explanation:

You often see the reduction with NADH written as

NADH ⟶ NAD⁺ + H⁺ + 2e⁻

If you think about it, H⁺ + 2e⁻ is equivalent to H:⁻, so we could write the reaction as

NADH ⟶ NAD⁺ + H:⁻

In terms of a mechanism, the dihydropyridine ring of NADH transfers a hydrogen atom with its pair of electrons (a hydride ion) to the substrate and becomes the more stable, aromatic pyridinium ion in NAD⁺.

7 0
4 years ago
In a beaker a compartment a has 25% glucose solution and compartment b has 5% glu glucose solution. The membrane is permeable to
dem82 [27]

Answer is: osmotic pressure.

The direction of osmotic pressure is always from the side with the lower concentration of solute to the side with the higher concentration, in this example, from solution b (5% glucose) to solution b (25% glucose).

Osmotic pressure, alongside the vapor pressure depression, freezing point depression and the boiling point elevation are the colligative properties od solution.

7 0
3 years ago
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