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3 years ago

Which is a thermosetting plastic?PolythenePVCMelamineNylon

Chemistry

1 answer:

serg [7]3 years ago

5 0

Melamine should be the right answer, i hope this helps.

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When warmed with an ammonium salt ammonia gas is given off

Elanso [62]

The ways in which ammonia can be identified is mentioned in below pointers.

<h3>What is Ammonia ?</h3>

Ammonia is a compound of nitrogen and hydrogen with the formula NH3.

A stable binary hydride, and the simplest pnictogen hydride.

Ammonia is a colourless gas with a distinct pungent smell.

Biologically, it is a common nitrogenous waste,

Three ways in which ammonia gas can be identified is:

It has a sharp characteristic odor.

When a glass rod dipped in HCl is brought in contact with the gas white color fumes of ammonium chloride are formed.

It turns moist red litmus blue, moist turmeric paper brown, and phenolphthalein solution pink.

To know more about Ammonia

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4 0

2 years ago

How does chemistry affect cancer

Rashid [163]

Answer:

Some chemicals react badly to your body, causing a chain of results leading to diseases.

Explanation:

5 0

3 years ago

Balance these chemical equations mg(s)_ + _N2(g) = _mg3N2

Salsk061 [2.6K]

Answer:

$3 Mg(s) + N_2(g) = Mg_3N_2(s)$

Explanation:

The valance of magnesium atom is $+2$

While the valence of nitrogen atom is $- 3$

Let us first write the first half-reactions

$Mg ---> Mg^{2+} + 2e^{-}$

The second half reaction is

$2N + 6e^- -----> N_2$

Adding the above two reactions and writing the final reaction, we get -

$Mg + N2 = Mg_3N_2$

The balance equation is

$3 Mg(s) + N_2(g) = Mg_3N_2(s)$

6 0

4 years ago

How is a mole ratio used in stoichiometry?

Svetach [21]

I mole ratio is used to convert the number of moles of one substance to number of moles of another substance.

5 0

3 years ago

What is the oxidation state of S in so ??

Marina86 [1]

Answer:

Explanation:

If a compound $SO$ existed, we would identify the oxidation state of sulfur using the following logic:

oxygen is more electronegative than sulfur, so it's more electron-withdrawing and it should have a negative oxidation state producing a positive oxidation state for sulfur;
oxygen typically has an oxidation state of -2;
we may then apply the fact that SO is expected to be a molecule with a net charge of 0;
if the net charge is 0 and the oxidation state of oxygen is -2, we may set the oxidation state of S to x;
write the equation for the net charge of 0 by adding all individual charges of the two atoms: $x + (-2) = 0$ ;
hence, x = 2.

That said, in this hypothetical compound S would have an oxidation state of +2.

6 0

3 years ago

Which is a thermosetting plastic?PolythenePVCMelamineNylon​

Which is a thermosetting plastic?PolythenePVCMelamineNylon