<u>Switch the 3 and the 4</u>, this change must made to the coefficients to balance this equation.
Now, the correct balance equation is C₃H₈ + 5 O₂ → 3 CO₂ + 4H₂O
This method of balancing chemical equations involves assigning algebraic variables as stoichiometric coefficients to each species in the unbalanced chemical equation.
Learn more about balance equation here:- brainly.com/question/11904811
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A. Reproduction
Birth is producing children just as they were which is REproduction
Heat energy released : 167.2 kJ
<h3>Further explanation</h3>
Heat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
m = 2000 g
c = 4.18 J/ g ° C
∆t = 20 ° C
![\tt Q=2000\times 4.18\times 20\\\\Q=167200~J=167.2~kJ](https://tex.z-dn.net/?f=%5Ctt%20Q%3D2000%5Ctimes%204.18%5Ctimes%2020%5C%5C%5C%5CQ%3D167200~J%3D167.2~kJ)
Answer: A volume of 59 mL of 0.220 M HBr solution is required to produce 0.0130 moles of HBr.
Explanation:
Given: Moles = 0.0130 mol
Molarity = 0.220 M
Molarity is the number of moles of solute present in liter of a solution.
![Molarity = \frac{moles}{volume (in L)}](https://tex.z-dn.net/?f=Molarity%20%3D%20%5Cfrac%7Bmoles%7D%7Bvolume%20%28in%20L%29%7D)
Substitute the values into above formula as follows.
![Molarity = \frac{moles}{volume (in L)}\\0.220 M = \frac{0.0130 mol}{Volume (in L)}\\Volume (in L) = 0.059 L](https://tex.z-dn.net/?f=Molarity%20%3D%20%5Cfrac%7Bmoles%7D%7Bvolume%20%28in%20L%29%7D%5C%5C0.220%20M%20%3D%20%5Cfrac%7B0.0130%20mol%7D%7BVolume%20%28in%20L%29%7D%5C%5CVolume%20%28in%20L%29%20%3D%200.059%20L)
As 1 L = 1000 mL
So, 0.059 L = 59 mL
Thus, we can conclude that a volume of 59 mL of 0.220 M HBr solution is required to produce 0.0130 moles of HBr.
Answer:
Neutralisation involves an acid reacting with a base or an alkali, forming a salt and water.