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eimsori [14]
3 years ago
9

Let's say we have 2 Zinc atoms and 2 Sulfur atoms on one side of the equation. According to the Law of Conversation and Mass, ho

w many Zinc Sulfide molecules would be on the other side of the equation?
Chemistry
1 answer:
Viefleur [7K]3 years ago
5 0

Answer:

Two

Explanation:

The law of conservation of mass states that in an isolated system the mass present is neither destroyed nor created by chemical changes or physical changes.

This tells us that the mass of reactants must be equal to the product mass.

If 1 atom of Zn react with one atoms of sulfur, the product will be 1 molecule of zinc sulfide according to the equation below

Zn(s) + S(s) ⇒ ZnS(s)

therefore two atoms each f zinc and sulfur will product two molecules of Zn sulfide

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The molecules which evaporate into the gas phase are the ones traveling with ________ velocity.
sveticcg [70]
The appropriate response is high. The best approach to consider it is those molecules have more vitality than the normal and it is unequivocally those higher enthusiastic ones that have enough vitality to break the intra-molecular forces and leave. By the way this is the reason when we sweat we chill off - the most enthusiastic molecules vanish diverting warmth.
5 0
3 years ago
Read 2 more answers
Label the signals due to ha, hb, and hc in the 1h nmr spectra.
trapecia [35]
Structure along with ¹H-NMR is shown below.

Signal for Hₐ;
                     Based on multiplicity of of the peak, a Singlet peak (the only singlet peak present in spectrum) at 2.2 ppm was assigned to Hₐ. As the methyl group in not coupling with any other proton so it gave a singlet peak.

Signal for Hb;
                     Based on multiplicity of of the peak, a Quartet peak (the only quartet peak present in spectrum) at 2.4 ppm was assigned to Hb. As the methylene group in coupling with methyl group having three protons so it gave a Quartet peak.

Signal for Hc;
                     Based on multiplicity of of the peak, a Triplet peak (the only triplet peak present in spectrum) at 1.1 ppm was assigned to Hc. As the methyle group in coupling with methylene group having two protons so it gave a Triplet peak.

3 0
4 years ago
You join a gym that cost $59 per month the first three months are free if you join for 12 month how much with you pay in all?
uranmaximum [27]

Answer:

531$

Explanation:

9 × 59 = 531 , 3 mo free, 12-3=9

6 0
3 years ago
Select the correct relationship among the concentrations of species present in a 1.0 M aqueous solution of the weak acid represe
vfiekz [6]

Answer:

D

Explanation:

We have to bear in mind that the acid is a weak acid. A weak acid does not dissociate completely in solution. We will have more concentration of undissociated acid than A^- and H3O^+ and OH^- in the system at equilibrium.

Being a weak acid, there is maximum concentration of water molecules followed by that of undissiociated acid.

Hence, for this solution, the concentration of ions in solution follows the order;

[H2O] > [HA] > [A-] ~ [H3O ] > [OH-]

8 0
3 years ago
3. Ion A has a charge of 2+ and polyatomic ion BC₄ has a charge of 1-. Which is the correct formula when these ions bond.
Bas_tet [7]

Answer:ABC4

Explanation:

The charge of a atom is not visible in a formula.

5 0
2 years ago
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