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Basile [38]
3 years ago
9

Why do my teacher's overload me with work?

Chemistry
1 answer:
Studentka2010 [4]3 years ago
8 0

Answer:

for you to get smarter

Explanation:

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Please help me! I don't understand this at all. All the info is in the picture. Thank you so much!!!
kykrilka [37]

Answer:

H₂S + Cl₂ —> S + 2HCl

Explanation:

? + Cl₂ —> S + 2HCl

To balance the equation above, we must recognise what atoms are present in the products.

The products contains S, H and Cl.

Thus, S, H and Cl must also be present in the reactants.

Considering the equation given above, we can see clearly that H and S is missing in the reactants.

H and S together as a compound is expressed as H₂S.

Now, we shall input H₂S into the equation to obtain the complete equation. This is illustrated below:

? + Cl₂ —> S + 2HCl

H₂S + Cl₂ —> S + 2HCl

Next, we shall verify to see if the equation is balanced.

There are 2 atoms of H on both sides of the equation.

There are 2 atoms of Cl on both sides of the equation.

1 atom of S exist on both sides of the equation.

Thus, the equation is balanced.

3 0
3 years ago
The end point indicates the completion of the titration by physical change (which is
saveliy_v [14]
Your answer would be, true.
8 0
3 years ago
Consider the reaction: n2(g) 3h2(g) → 2nh3(g) suppose that a particular moment during the reaction, molecular hydrogen is reacti
faust18 [17]

Answer:

0.229 M/s is molecular nitrogen reacting

Explanation:

N_2(g)+3H_2(g)\rightarrow NH_3(g)

Rate of the reaction :

R=-\frac{1}{1}\frac{d[N_2]}{dt}=-\frac{1}{3}\frac{d[H_2]}{dt}=\frac{1}{2}\frac{d[NH_3]}{dt}

Rate at which hydrogen gas is reaction :

\frac{d[H_2]}{dt}=0.0687 M/s

Rate at which hydrogen gas is reaction :

\frac{d[N_2]}{dt}=?

-\frac{1}{1}\frac{d[N_2]}{dt}=-\frac{1}{3}\frac{d[H_2]}{dt}

\frac{d[N_2]}{dt}=\frac{1}{3}\times 0.0687 M/s

=0.229 M/s

0.229 M/s is molecular nitrogen reacting

8 0
3 years ago
Does changing the number of neutrons change the identity of the element you have built?
Alina [70]

Answer:<em>if u change the number of neutrons u will .get an isotope of the same element. </em>

Explanation: <em>neutron can make an atom radioactive</em>

5 0
3 years ago
Which of the following is an oxidation-reduction reaction? Fe2O3 3CO Right arrow. 2Fe 3CO2 CuSO4 2NaOH Right arrow. Cu(OH)2 Na2S
Damm [24]

The reaction, Fe2O3 + 3CO------> 2Fe + 3CO2 is an oxidation-reduction reaction.

An oxidation-reduction reaction is a reaction in which there is a change in oxidation number from left to right in the reaction. This is because, a specie is oxidized and another specie is reduced.

In the reaction;  Fe2O3 + 3CO------> 2Fe + 3CO2, we can see that the oxidation number of iron decreased from +3 on the left hand side to zero on the right hand side. The oxidation number of carbon was increased from + 2 to +4.

Learn more: brainly.com/question/10079361

6 0
3 years ago
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