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1 year ago

Enter the chemical equation 2H+(aq)+S2−(aq)→H2S(g). Express your answer as a chemical equation.

2 answers:

6 0

Enter the chemical equation 2H+(aq)+S2−(aq)→H2S(g). Express your answer as a chemical equation: $2H^+ (aq) + S^{2-}(aq) => H_2S(g)$

<h3 /><h3>Further explanation </h3>

The skill that must be know in chemistry is writing the chemical equations, because these equations are the representations of chemical reactions between substances. The chemical equation consists of substances reacting on the left side and the products formed on the right side, with a right arrow inserted to show a chemical reaction taking place. The phases of the substances are included by writing them as subscripts contained in a parenthesis.

For chemical reactions involving ions, the superscripts are used and the number is usually placed before the charge (i.e. 2+, not +2).

For the given chemical reaction, the complete chemical equation including the phases given by:

$2H^+ (aq) + S^{2-}(aq) => H_2S(g)$

Sulfur $S$ is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent, and nonmetallic. Whereas Hydrogen sulfide $H_2S$ is a colorless chalcogen hydride gas with the characteristic is very poisonous, corrosive, and flammable. Hydrogen $H$ is the most abundant chemical substance in the Universe

<h3>Learn more</h3>

Learn more about the chemical equation brainly.com/question/12271256
Learn more about Hydrogen sulfide brainly.com/question/12592944
Learn more about Sulfur brainly.com/question/4288925

<h3>Answer details</h3>

Grade: 9

Subject: Chemistry

Chapter: the chemical equation

Keywords: the chemical equation, Introduction to Mastering Chemistry, Chemistry, equation, Hydrogen sulfide

amm18121 year ago

4 0

Answer : The complete chemical equation is,

$2H^+(aq)+S^{2-}(aq)\rightarrow H_2S(aq)$

Explanation :

As we know that, in a chemical equation the reacting species present on left side and the product formed present on right side and a right arrow inserted between the reactants and product that show a chemical reaction taking place.

In the chemical reaction, the phases of the substances are also included and subscripts and superscripts are also used for the numbers.

For the given chemical reaction, the balanced chemical equation including the phases, is given by:

$2H^+(aq)+S^{2-}(aq)\rightarrow H_2S(aq)$

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The average mass of an atom is calculated with the formula:

average mass = abundance of isotope (1) × mass of isotope (1) + abundance of isotope (2) × mass of isotope (2) + ... an so on

For the boron we have two isotopes, so the formula will become:

average mass of boron = abundance of isotope (1) × mass of isotope (1) + abundance of isotope (2) × mass of isotope (2)

We plug in the values:

10.81 = 0.1980 × 10.012938 + 0.8020 × mass of isotope (2)

10.81 = 1.98 + 0.8020 × mass of isotope (2)

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2 years ago

On top of one of the peaks in rocky mountain national park the pressure of the atmosphere is 550 torr determine the boiling poin

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Answer:

The boiling point of water at 550 torr will be 91 °C or 364 Kelvin

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Step 1: Data given

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⇒ We'll use the Clausius-Clapeyron equation

ln(P2/P1) = (ΔHvap/R)*(1/T1-1/T2)

ln(P2/P1) = (40.7*10^3 / 8.314)*(1/T1 - 1/T2)

⇒ with P1 = 760 torr = 1 atm

⇒ with P2 = 550 torr

⇒ with T1 = the boiling point of water at 760 torr = 373.15 Kelvin

⇒ with T2 = the boiling point of water at 550 torr = TO BE DETERMINED

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Element X is found in two forms: 90.0% is an isotope that has a mass of 20.0, and 10.0% is an isotope that has a mass of 22.0. W

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$M_{X} = \frac{(20.0\cdot 90\%)+(22.0\cdot10\%)}{100\%} = \frac{2020}{100} = 20.2[u]$

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H A and H B are both weak acids in water, and HA is a stronger acid than HB. Which of the following statements is correct? Selec

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Answer:

B is a stronger base than A^-, which is a stronger base than H2O, which is a stronger base than CI^-

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The general equation for each acid is:

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Conjugate base is what remains of the acid molecule after it loses a proton:

HA = acid A- Conjugate base

HB = acid B- Conjugate base

A conjugate acid is formed when the proton is transferred to the base

H2O = base H3O+ = Conjugate acid

The stronger acid will produce a weaker base. According to this, if HA is a stronger acid than HB, A- would be the weaker base (B- is the stronger base).

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