A friend is trying to balance the following equation: N 2 + H 2 → N H 3 He presents you with his version of the “balanced” equation: N + H 3 → N H 3 You immediately recognize that he has committed a serious error; however, he argues that there is nothing wrong, since the equation is balanced. What reason can you give to convince him that his “method” of balancing the equation is flawed?
A friend is trying to balance the following equation: N 2 + H 2 → N H 3 He presents you with his version of the “balanced” equation: N + H 3 → N H 3 You immediately recognize that he has committed a serious error; however, he argues that there is nothing wrong, since the equation is balanced. What reason can you give to convince him that his “method” of balancing the equation is flawed?
Solution Summary: The author explains that a chemical reaction can be expressed in form of an equation with all the necessary information in it. As the other guy balances the equation, he arrives at the second equation given in the problem statement.
A friend is trying to balance the following equation:
N
2
+
H
2
→
N
H
3
He presents you with his version of the “balanced” equation:
N
+
H
3
→
N
H
3
You immediately recognize that he has committed a serious error; however, he argues that there is nothing wrong, since the equation is balanced. What reason can you give to convince him that his “method” of balancing the equation is flawed?
1) The nerve gas Sarin, which was released in a Tokyo subway station in 1996, has a molecular
formula of C4H10PO2F. You are a detective that has just isolated an unknown, “suspicious"
compound in a raid. You are asked to determine if it is Sarin. To do so, you combust a 10.0g
sample of this compound. In this reaction, some of the atoms in sarin will combine together with
oxygen to make new molecules. 15.6g CO2 and 6.4g H½O are produced in this reaction, along
with other products. Using numerical calculations, prove that this compound cannot be Sarin.
Explain your reasoning clearly. (Problem developed by Logan M. McCarty)
2) Estimate the number of water molecules on Earth. Work in powers of ten if possible, and do
Balance the following chemical reaction. Enter the sum of the balanced
coefficients as your answer. Assign "blank" coefficients a value of 1.
sodium carbonate + hydrobromic acid
sodium bromide + carbon dioxide + water
While idly tossing a baseball from hand to hand one day, your friend Yolanda (an expert chemist) says this:
"Metal sulfides react with strong acids to produce hydrogen sulfide and a salt."
Using Yolanda's statement, and what you already know about chemistry, predict the products of the following reaction.
Be sure your chemical equation is balanced!
SnS (s) + HCl(aq) → 0
0-0
0+0
X
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell