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3 years ago

PLEASE HELP NEED AN ANSWER ASAP!!!!

Chemistry

1 answer:

Tcecarenko [31]3 years ago

8 0

Green because it went though the catalytic reaction, as i can see on the 2 graphs

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Explanation:

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2 years ago

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the first three ionization energies of an element x are 590, 1145, and 4912 kj mol-1. what is the most likely formula of the com

joja [24]

<u>Answer:</u> The chemical formula is $XSO_3$

<u>Explanation:</u>

Ionization energy is defined as the amount of energy that is required to remove an electron from a chemical species.

The ionization energy equation for the given values follow:

$X(g)\rightarrow X^+(g)+e^-;E_I=590kJ/mol$

$X^+(g)\rightarrow X^{2+}(g)+e^-;E_I=1145kJ/mol$

$X^{2+}(g)\rightarrow X^{3+}(g)+e^-;E_I=4912kJ/mol$

From the values of ionization energy above, it can be seen that the ionization energy increases as every succeeding electron is removed.

Second ionization energy is a little higher than the first one but there is a huge amount of difference between the third and second ionization energy.

This implies that the ion formed during second ionization energy has a stable configuration and it requires a humongous amount of heat to release the third electron.

Hence, the ion formed will be $X^{2+}$

Sulfite ion is a polyatomic ion having a chemical formula of $SO_3^{2-}$

An ionic compound is formed between the two ions and the chemical compound formed between the two will have a formula of $XSO_3$

Hence, the chemical formula is $XSO_3$

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3 years ago

3. If 90.0 grams of barium chloride react with sulfuric acid, how many

PtichkaEL [24]

Answer:

The answer to your question is 100.8 g

Explanation:

Data

mass of Barium chloride = 90 g

mass of Barium sulfate = ?

Balanced chemical reaction

BaCl₂ + H₂SO₄ ⇒ BaSO₄ + 2HCl

Process

1.- Calculate the molar mass of BaCl₂ and BaSO₄

BaCl₂ = 137.3 + (2 x 35.5) = 208.3g

BaSO₄ = 137.3 + 32 + (16 x 4) = 233.3g

2.- Use proportions to find the mass of BaSO₄

208.3 g of BaCl₂ --------------------- 233.3 g of BaSO₄

90 g of BaCl₂ --------------------- x

x = (90 x 233.3) / 208.3

x = 20997/ 208.3

x = 100.8 g

3.- Conclusion

There will be produced 100.8 g of BaSO₄

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3 years ago

Is a particle with a positive charge.:)

tatyana61 [14]

Proton is the answer

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3 years ago

What is an atomic mass unit?

rjkz [21]

Answer:

A unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12. It is equal to approximately 1.66 x 10-27 kg.

Explanation:

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