2 years ago

Why parafin oil use in melting

1 answer:

4 0

Answer:

Paraffin oil is used for determination of boiling point and melting point for the following reasons: It has a very high boiling point and so it can be used to maintain high temperatures in the boiling and melting point apparatus without loss of the substance.

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What are the products obtained in the electrolysis of molten nai?

yanalaym [24]

Answer is: sodium (Na) and iodine (I₂).

<span> First ionic bonds in this salt are separeted because of heat:
</span>NaI(l) → Na⁺(l) + I⁻(l).

Reaction of reduction at cathode(-): Na⁺(l) + e⁻ → Na(l) /×2.

2Na⁺(l) + 2e⁻ → 2Na(l).

Reaction of oxidation at anode(+): 2I⁻(l) → I₂(l) + 2e⁻.

The anode is positive and the cathode is negative.

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3 years ago

What kind of ions do acids have and what kind of ions do bases produce when you dissolve them in water

natulia [17]

Acids have hydronium ions and when dissolved in water, bases produce hydroxide ions. Hope this helps.

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3 years ago

Which kind of nuclear decay does not alter the identity of the atom?

PtichkaEL [24]

For alpha and beta decay it does because the proton number changes.
During gamma, there is no change of identity, just energy

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3 years ago

Read 2 more answers

which subatomic particle made out of protons neutrons and electrons can charge and still be considered the same element

TEA [102]

Answer:

Proton

Explanation:

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2 years ago

6. Compare and Contrast How are the properties of acids and bases similar? How are they different?

baherus [9]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} - }$

Acids and bases both react with water and a lot of acids and bases are soluble in nature.
Both acids and bases are electrolytes which means that they’re good conductors of electricity.
Acids and bases both produce ions in water solution.
Acids release hydrogen ions (H+) whereas Bases release hydroxide ions (OH–).

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2 years ago