A decomposition reaction<span> is a type of chemical </span>reaction<span> in which a single compound breaks down into two or more elements or new compounds. These </span>reactions<span> often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds. so it is a decomposition reaction because the silver chloride breaks down into silver and chlorine</span>
Answer:
a. C₄H₁₀/O₂ = 2:13 (example)
b. O₂/CO₂ = 13:8
c. O₂/H₂O = 13:10
d. C₄H₁₀/CO₂ = 2:8
e. C₄H₁₀/H₂O = 2:10
Explanation:
2C₄H₁₀ + 13O₂ ⟶ 8CO₂ + 10H₂O
The molar ratios are the same as the coefficients in front of the formulas.
We know that Zinc (Zn) has a molar mass of 65.39
g/mol. Hence the remaining is:
136.28 - 65.39=70.89
While molar mass of Chlorine (Cl) is 35.453 g/mol .
70.89 / 35.453 =2 => Cl
<span>So the formula is ZnCl2</span>
<u>Answer:</u> The volume of NaOH required at the half-equivalence point is 6.21 mL
<u>Explanation:</u>
The chemical equation for the reaction of a weak acid with NaOH follows:

From the equation, we can say that NaOH and weak acid is present in a 1 : 1 ratio.
We are given:
Volume of NaOH required at equivalence point = 12.42 mL
The volume of NaOH required at half-equivalence point will be = 
Hence, the volume of NaOH required at the half-equivalence point is 6.21 mL