Sign In
Ask Question
Chemistry
Amy Wheeler
5 October, 02:45
How to do balancing equations
+1
Answers (
1
)
Rambo
5 October, 04:13
0
It's quite hard to explain without an example, but I'll give it a go:
Basically, you have to count the number of an element on one side of the equation, then count it on the other, and the aim of balancing the equation is to get the 2 values to be the same (as mass cannot be created or destroyed).
This involves multiplication of the molecule (s) on either side of the equation in order to balance the whole thing. Note this is not like maths, you dont have to do the same to both sides, but you do have to multiply out entire molecules - you cannot multiply just the H2 in H2O for example.
A reasonably basic example of this balancing is:
Fe + Cl2 = FeCl3
The first thing I notice is that there is an even number of Cl atoms on the left, and an odd number on the right, so the first thing I'll do is multiply the one on the right to get it to an even number, ie by 2.
Fe + Cl2 = 2 (FeCl3)
Expanding that gives Fe2Cl6 (although you dont write it like that). So we need to get 6 Cl atoms and 2 Fe atoms by multiplying the left hand molecules by amounts if possible. If you look at that, we can achieve that, by multiplying Cl2 by 3, and Fe by 2.
2Fe + 3Cl2 = 2FeCl3
And there you have your balanced equation, you'll notice that the number of any given element has the same number of atoms on both sides of the equation.
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“How to do balancing equations ...”
in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
A 2.00-liter sample of a gas has a mass of 1.80 grams. what is the density, in grams liter
Answers (1)
Which phrase describes an atom? (1) a positively charged electron cloud surrounding a positively charged nucleus (2) a positively charged electron cloud surrounding a negatively charged nucleus (3) a negatively charged electron cloud surrounding a
Answers (1)
True of false, only warm or hot abjects have thermal energy
Answers (1)
The general direction of plate movement at each subduction zone is toward the. Earthquakes along the subduction zones near Sumatra and Chile are some of thein the world. Volcanic arcs can develop that areto the subduction zone.
Answers (1)
Heliocentric theory: was initially rejected was supported by Galileo stated that the earth rotated around the sun all of the above
Answers (1)
New Questions in Chemistry
Is a sodium cation smaller or larger than a sodium atom
Answers (1)
What would the charge be on an atom with 9 protons 9 electrons and 10 neutrons
Answers (1)
PH + pOH = 14. What is the hydroxide concentration of a solution with pH of 8?
Answers (1)
A student Increases the temperature of a 417 cubic centimeter balloon from 278 K to 231 K. Assuming constant pressure what should the new volume of the balloon be
Answers (1)
What is the molarity of a solution with 1.17 moles of Ca (OH) 2 disolved in 0.2 liters of water? A. 1.17 M B. 0.2 M C. 0.17 M D. 5.85 M
Answers (1)
Home
»
Chemistry
» How to do balancing equations
Sign In
Sign Up
Forgot Password?