I. For the chemical reaction : C4H10 + O2 ------> CO2 + H2O
a) Balance the equation.
b) Why do we have to balance chemical equations?
c) What is the type of reaction?
d) If you start with 3 moles of Butane with enough oxygen, how many moles of water will be formed?
II. John has burned 756 g of log completely in his fire place to heat up his house. At the end of this process, John was left with 106g of ashes.Describe in detail whether matter was destroyed or not during this process?
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A. 2C4H10 + 13O2 ------> 8CO2 + 10H2O
ReplyDeleteB. Equations have to be balanced to show that mass is neither created nor destroyed.
C. Single replacement
D. 3 mol of butane/ 1 * 10 mol of H2O/ 2 mol fo butane = 15 mol of H2O.
II. Matter cant be created nor destroyed. 106g of the log is now in ashes so the mass is still there but in another state.
1. 2C4H10 + 13O2 ---> 8CO2 + 10H2O
ReplyDelete2. Equations have to be balanced to show that mass is neither created nor destroyed.
3. Single replacement
4. 3 mol of butane/ 1 * 10 mol of H2O/ 2 mol fo butane = 15 mol of H2O.
II. Matter cant be created nor destroyed. 106g of the log is now in ashes so the mass is still there but in another state
So where did the mass go? What accounts for loss in mass?
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteA. 2C4H10 + 13O2 --> 8CO2 + 10H2O
ReplyDeleteB. The equation must be balanced to agree with Law of Conservation of Mass.
C. Combustion
D. 3mol C4H10/1 X 10mol H2O/2mol C4H10= 15mol of H2O
II. Due to the Law of Conservation of Mass, matter wasn't destroyed. The wood was being burned allowing some of the elments present in the wood to be released into the atmosphere, due to its reaction with fire and leaving the rest in the form of ashes.
a.2C4H10 + 13O2 --> 8CO2 + 10H2O
ReplyDeleteb. An equation hasto be balanced so it can agree with Law of Conservation of Mass.
c. Its Combustion
d. 3mol of butane/ 1 * 10mol of H2O/ 2mol fo butane = 15 mol of H2O.
Matter was not created or destroyed because it is impossible to create or destroy but it was turned into gas and ash.
a. 2C4H10 + 13O2 --> 8CO2 + 10H2O
ReplyDeleteB. The equation must be balanced to agree with Law of Conservation of Mass.
c. Combustion
d. 3mol C4H10/1 X 10mol H2O/2mol C4H10= 15mol of H2O
A. 2C4H10 + 13O2 ------> 8CO2 + 10H2O
ReplyDeleteB. We have to balance chemical equations because mass can be neither created nor destroyed by ordinary chemical means so there must be the same number of atoms on both sides of the equation. Or in other terms, obey Law Conservation of Mass.
C. It is a combustion reaction.
D. There will be 3 mol of butane/ 1*10 mol of H2O/2 mol for butane which equals 15 mol of H2O.
E.Well, as it is stated in the Law Conservation of Mass it clearly stated that during a chemical reaction the form or composition of matter will change but the particles within the matter rearranges to form new substances causing matter to not be destroyed. The total mass of the matter remains the same before and after a chemical change. Mass can be gained or lost and this may be due to the gas being given off or taken in from the air during chemical reactions which accounts for any differences in mass. Overall, the gases did release into the air from the wood, and since it was burned it just basically cant restore to its original form as a log.
A)2C4H10 + 13O2 ---> 8CO2 + 10H2O
ReplyDeleteB)The equation has to be balanced so that it can agree with the Law of Conservation of Mass because matter cannot be created nor destroyed.
C)It is a combustion reaction.
D)3 mol of butane/ 1 x 10 mol of H2O/ 2 mol fo butane = 15 mol of H2O
II. Matter cant b created nor destroyed, so even though the wood was left with 106 grams of ashes therest of the wood was burned to gas.
a. 2C4H10 + 13O2 ---- 8CO2 + 10H2O
ReplyDeleteB. It should be balanced to be able to agree with the Law of Conservation of Mass
c. It is a combustion reaction
d. 3mol C4H10/1 X 10mol H2O/2mol C4H10= 15 mol of H2O
Part A: 2C4H10 + 13O2 -> 8CO2 + 10H2O
ReplyDeletePart B: Equations must be balanced due to the law of conservation of matter. It states that matter can neither be created nor destroyed. Because of this, the equation must be equivilent on both sides.
Part C: Combustion reaction
Part D: 15 moles of water
Part II: The law of conservation of matter states that matter can not be created nor destroyed. As far as what occurred to the rest of the matter, more than likely when the log was burned it produced gases and ashes. The gases dispersed into the air, while the ashes remained behind.
A: 2C4H10+13O2->8CO2+!OH2O
ReplyDeleteB: THE EQUATIONS MUST BALANCE BECAUSE OF THE LAW OF CONSERVATION OF MATTER. MATTER CAN NIETHER BE CREATED NOR DESTROYED., SO THE EUATION MUST EQUAL BOTH SIDES.
C: COMBUSTION REACTION
D: 15 MOLES OF WATER
E: MATTER CANNOT BE CREATED NOR DESTROYED. THE GASES WENT INTO THE AIR, WHILE THE ASHES WERE STILL THERE.
a. 2 C4H10+ 13 O2 => 8 CO2 +10 H2O
ReplyDeleteb. we balance equations to reinforce the law of conservation. meaning that matter is not created nor destroyed and representing how all matter stays in the reaction.
c. combustion reaction
d. 15 moles of H2O
II. the matter is not destroyed due to the law of conservation. The gas from the logs was lost and sent into the atmosphere and can be used with something else.
Jade, which gas will be formed when a log was burned?
ReplyDeleteSamuel, why you didn't answer the second part of the question?
ReplyDeleteChante, awesome job!
ReplyDeleteKimbriana, awesome answer!
ReplyDeleteWestly, what elements from the log would have released into atmosphere? In what state?
ReplyDeleteWesley, what elements from the log would have released into atmosphere? In what state?
ReplyDeleteCarbon and nitrogen were released as gases.
ReplyDeletemass can not be created or destroy
ReplyDelete