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.1,9,4,5
ReplyDeleteB. we have to balance it so it can abide by the law of conservation of mass.
C.The type of reaction that is occuring is combustion.
D.15 mol of H2O
A) 2, 18, 8, 10
ReplyDeleteB) you must balance chemical equations so theat they follow the rules for the law of conservation of mass.
c) Combustion
d) 15 moles of H2O
II) i believe matter was destroyed because he started with 756g and ended with 106g so the fire reacted with the wood and caused matter to be destroyed.
A. 1,9,4,5
ReplyDeleteB. you have to have the number of elements on both sides to have it balance out on both sides
C. sense the reaction contained oxygen and form water which is a form of energy then the reaction is combustion.
D. i kept getting crazy answer like 28.319
2. i believe that no mass was loss because of the law of conservation. the matter was just moved to the atmosphere
How can matter move into atmosphere? In what form?
ReplyDeleteA.1,9,4,5
ReplyDeleteB. you must balance it so it follows the law of conservation of mass.
C.The type of reaction that is combustion.
D.15 mol of H2O
A. 1,9,4,5
ReplyDeleteB. We balance chemical equations so they abide by the law of conservation of mass.
C.Combustion is the type of reaction.
D.I believe 15 mol of H2O would be formed.
2.I believe matter was not destroyed or created because matter cannot be created nor destroyed.
A: 2,13,8,10
ReplyDeleteB: you must balance an equation to see if it complements the conservation of mass and you must balance equations to carry out many calculations mostly involving those dealing with stoichemitry.
C:this is a combustion reaction
D:30
part 2: according to the law of conservation, i believe that the matter was not destroyed, but changed its form. although there was a decrease in the mass(grams), its showing that instead of being a full solid, it changed into a powdery or less compacted solid resulting in the change of mass(grams.
D: 30 mol of H2O would be formed
ReplyDeleteCierra, do you mean powdery or less compacted solid do not have mass? Give me an example for this state of substance.
ReplyDeleteA) 1, 9, 4, 5
ReplyDeleteB) to follow the law of conservation of matter
C) Combustion
D) 15 mol of water
2) matter was not destroyed. some changed to ashes while the other blew as a result of carbon dioxide gas and water.
A. 2,13,8,10
ReplyDeleteB. It has to follow the law of conxervation
C.combustion
D. ?
II. the matter was not destroyed because matter can't be created nor destroyed.
correction for 1(A):
ReplyDelete2,13,8,10
A. 2,13,8,10
ReplyDeleteB. We have to balance chemical equations because we have to know how many molecules are in an element or compound so they can balance each other.
C. It is a combustion because oxygen participated in this reaction.
D. 15 mol of H2o
Part II. In this process I think that matter was not destroyed. I say that because matter can't be created or DESTROYED, I think that since this was a heat reaction a gas excaped causing the ashes to show to let you know that energy was produced.
A:2,13,8,10
ReplyDeleteB: We have to balance the equations to make sure that each side (reactant and product) have the same equal amount of atoms on both sides of the equation.
C: The type of reaction is combustion.
D:There would be 30 moles of H2O.
Well, according to the law of conservation of matter, energy can not be created nor destoryed. So I don't believe that the matter was destoryed in this reaction. I believe that the energy was transferred or just rearranged in a different way.
-Tysherrica Walker
A. 2,13,8,10
ReplyDeleteB. We balance equations to determine mole ratios of elements and compounds. We make sure that reactions abide by the law of conservation of matter by balancing equations. Balanced equations are the basis for solving stoichiometric problems.
C. Combustion
D. 15 mol H2O
I don't believe that matter was destroyed during this process because it would go against the law of conservation of mass. Because the mass after the reaction was less than the mass before the reaction, gas from the elements were just released in the atmosphere. Carbon dioxide and water left the reaction, causing the remaining elements to form the ashes.
I.
ReplyDeleteA.2,14,8,10
B.because the equation has to follow the law of conseration of mass ; that simply states that mass is conserved in any shemical change
C.Combustion because there is oxygen present
D. I belive it would be 15 moles of water
II. I believe for two reason matter can not be created nor destroyed ; as well as ; it would go aganist the law of conseration of mass.
A. 2,13,8,10.
ReplyDeleteB. We balance chemical equations b/c we have to determine the quantities of the reactants and products.
C. Combustion
D. 15 moles of H20
Part 2. Matter continues to stay the same throughout the process b/c it can't be destroyed. The law of conversion of mass states that what you put in is what you get out.
A. 2,13,8,10
ReplyDeleteB.you have to balance chemical equations to determine quantities of reactants or products and also abide by the law of conservation of mass.
C.combustion reaction
D.15 moles of H2O
A. 1,9,4,5
ReplyDeleteB. you balance the equation to abide by the law of conservation of mass.
C.combustion reaction
D.15 moles of H2O
II.According to the law of conservation of matter, energy can not be created nor destoryed. So therefor I don't believe that the matter was destoryed in this reaction
1,9,4,5
ReplyDeleteto follow the conservation of mass and you have to balance to figure out the amount of moles
combustion
15 mols of water
i dont believe thatmatter was destoryed in the reaction i believe that the log was more dense than the ashes with makes it lighter
Matter may move into the air in the form of gas such as hydrogen.
ReplyDeleteA) 2, 13, 8, 10
ReplyDeleteB) The importance in balancing equations is to be able to determine the quantities of products in reactants in the equation.
C) It is a combustion reaction
D) 15 moles of H2O would be formed.
II. No, matter cannot be created nor destroyed, it can only be changed. When it transformed into ash, it was a pile of carbon. Matter changed from a solid to a gas through a chemical change that occurred from heating up the log. When it was burned, it evaporated and turned into a gas, showing that the energy was still there.