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FrozenT [24]
2 years ago
5

PLZ HELP PLZ HURRY NO WRONG ANSWER PLZ ALSO WILL GIVE BRAINLIEST

Chemistry
1 answer:
Advocard [28]2 years ago
4 0

Answer:

I dont lnow much about chemistry, but I believe it's either d or a. sorry if its wrong!

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Complete and balance each of the following equations for gas evolution reactions HCl(aq)+ZnS(s)>
DENIUS [597]

2HCl(aq) + ZnS(s) ⇒ ZnCl₂(aq) + H₂S(g)

<h3>Further explanation  </h3>

Equalization of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

  • 1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  
  • 2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  
  • 3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

Reaction

HCl(aq) + ZnS(s) ⇒ ZnCl₂(aq) + H₂S(g)

1. give equation

aHCl(aq) + bZnS(s) ⇒ ZnCl₂(aq) + cH₂S(g)

2. make an equation

H, left=a, right=2c⇒a=2c(eq 1)

Cl, left=a, right=2⇒a=2⇒c=1(from eq 1)

Zn, left=b, right=1⇒b=1

So the equation :

2HCl(aq) + ZnS(s) ⇒ ZnCl₂(aq) + H₂S(g)

4 0
3 years ago
Give a chemical formula for the compound formed when sulfur dioxide reacts with water
zavuch27 [327]
When sulfur dioxide reacts with water , the product is called sulphurous acid, H2SO3. The balanced equation is expressed in the following manner : SO2  + H2O = H2SO3. There is a one mole to one mole ratio between any of the reactants to product, sulphurous acid. 
6 0
2 years ago
What is a scientific question?
Lunna [17]

Answer:

im guessing it's the second one

5 0
3 years ago
Can anyone answer this?? Thanks in advance <br><br> AlCl3 + Cu = ?
Kazeer [188]
Reaction won't occur
Because the activity of Cu is less than Al
3 0
2 years ago
What is the definition of a covalent bond?
valentinak56 [21]
A covalent bond is the bond formed by the sharing of a pair of electrons by two atoms.

Your answer is D: A bond between two atoms.
8 0
3 years ago
Read 2 more answers
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