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3 years ago

Which equation represents an incorrectly balanced chemical equation?

Chemistry

1 answer:

MAXImum [283]3 years ago

5 0

Answer:

2ZnS (s) + 2HCl (aq) → 4ZnCl₂ (aq) + H₂S (g)

Explanation:

The last equation is incorrectly balanced:

2ZnS (s) + 2HCl (aq) → 4ZnCl₂ (aq) + H₂S (g)

In this chemical equation two zinc and sulfur atoms are present in reactant side while in product side four atoms of zinc and one atom of sulfur are present, that's why it is incorrectly balanced.

The other equations:

Na₂CO₃ (s) → Na₂O (s) + CO₂ (g)

It is correctly balanced because two sodium one carbon and three oxygen atoms are present on both side of reaction.

4Al(s) + 3O₂ (g) → 2Al₂O₃ (s)

It is correctly balanced because four aluminium and six oxygen atoms are present in reactant and product side.

Zn (s) + 2HCl (aq) → ZnCl₂(aq) + H₂ (g)

It is correctly balanced because one zinc two chlorine and two hydrogen atoms are present on both side of reaction.

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Both circles above represent the same area of air and the green dots represent air

Misha Larkins [42]

Answer:

Explanation:

hope it helps brainliest pls

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3 years ago

A Brønsted-Lowry acid is a substance which produces a. hydroxide ions in aqueous solution. b. accepts protons from other substan

kompoz [17]

Answer:

A Brønsted-Lowry acid is a substance which donates protons to other substances. (option c.)

Explanation:

For Brønsted-Lowry acids, are the ones that donates protons and bases, the ones that accepts H⁺ from others compounds.

In this reaction:

NH₃ + HCl → NH₄Cl

The hydrocloridic acid donates the proton to ammonia to make ammonium chloride. So the HCl, is a Brønsted-Lowry acid while the ammonia is a base.

There are cases, like water that behaves as acid and base.

These compounds are called amphoteric because it can donate H⁺ or OH⁻ at the same time.

H₂O ⇄ H⁺ + OH⁻

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3 years ago

Cual de los estados de agregacion es mas abundante en el universo

alisha [4.7K]

Answer: El Plasma, es el estado físico mas abundante no solo del universo sino de la naturaleza:

Explanation:

"El plasma es el estado de agregación más abundante de la naturaleza, y la mayor parte de la materia en el Universo visible se encuentra en estado de plasma, la mayoría del cual es el enrarecido plasma intergaláctico (particularmente el medio del intracluster) y en las estrellas."

7 0

3 years ago

Consider the following reaction where K. = 9.52 10 2 at 350 K.

Harman [31]

Answer:

The correct answer is A :))

3 0

3 years ago

If someone consumes 22 g of sodium chloride per day, what mass (in grams) of sodium does that person consume? Sodium chloride is

kompoz [17]

Answer:

Mass of sodium, the person daily consume = 8.58 g

Explanation:

Given that:-

sodium chloride is 39% sodium by mass which means that:-

100 g of sodium chloride contains 39 g of sodium

Also,

1 g of sodium chloride contains 0.39 g of sodium

So, Given mass = 22 g

22 g of sodium chloride contains $0.39\times 22$ g of sodium

<u>Mass of sodium, the person daily consume = 8.58 g</u>

4 0

4 years ago