Answers
Final answer:
In a reaction where two moles of C3H8 react with an excess of oxygen, the ∆H would be -4400 kJ, double the ∆H value when only one mole is reacted.
Explanation:
The given reaction, C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O, has a ∆H of –2200 kJ. This represents the energy change for the reaction involving one mole of C3H8. When two moles of C3H8 react, the ∆H will be double that of the given ∆H. Therefore, when two moles of C3H8 react with excess oxygen, the ∆H would be -4400 kJ. This is because the ∆H for a reaction is directly proportional to the amount of substance reacted, hence when two moles of C3H8 are reacted, the ∆H is doubled.
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Related Questions
What is the mass, in grams, of 1.50 mol of iron (III) sulfate?Express your answer using three significant figures.
In the nuclear transmutation represented by 168o(p, \alpha) 137n, the emitted particle is ________.
wo reactions and their equilibrium constants are given. A + 2 B − ⇀ ↽ − 2 C K 1 = 2.57 2 C − ⇀ ↽ − D K 2 = 0.226 A+2B↽−−⇀2CK1=2.572C↽−−⇀DK2=0.226 Calculate the value of the equilibrium constant for the reaction D − ⇀ ↽ − A + 2 B .
If a sample contains 84.0 % of the R enantiomer and 16.0 % of the S enantiomer, what is the enantiomeric excess of the mixture
B. Platinum does not react with oxygen at room temperature.
C. The page of the textbook is white.
D. The copper sheets that form the "skin" of the Statue of Liberty
have acquired a greenish coating over the years.
Answers
Final answer:
A chemical property is a characteristic observed during a reaction where the substance's chemical composition changes. In the provided options, 'Platinum does not react with oxygen at room temperature' and 'The copper sheets of the Statue of Liberty have acquired a greenish coating over the years' are chemical properties.
Explanation:
In Chemistry, a chemical property is a characteristic that is observed during a reaction in which the chemical composition or identity of the substance is changed. Taking a look at the options provided:
- Gallium metal melts in your hand is a physical property as melting point is not a chemical change.
- Platinum does not react with oxygen at room temperature is a chemical property because it is about the propensity of platinum to react (or not react) which is a chemical behavior.
- The page of the textbook is white is physical property because color does not indicate a chemical change.
- The copper sheets that form the 'skin' of the Statue of Liberty have acquired a greenish coating over the years is also a chemical property because the green coating is a result of a chemical reaction (oxidation).
So, the correct answers are options B and D. Both entail a change or lack of change in the chemical identity of a substance.
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Answers
Answer:
Rate of reaction will be half of it's initial value
Explanation:
For the given reaction, the rate law is -
Where k is rate constant, [1-iodo-2-methylbutane] is concentration of 1-iodo-2-methylbutane and is concentration of
Here nucleophile is the ion
Initiallly,
When concentration of is halved then-
So rate of reaction will be half of it's initial value
renewable energy to heat your home. Which
renewable energy resource is best suited to
your area? Explain your answer.
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Answer:
wood
Explanation:
i can take the seds from the trees to row new trees and still use the wood without causing deforestation
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Answer:
Polarity
Cohesion
Adhesion
High Specific Heat
Explanation:
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Answer:
Lemon
HCI
Blood
Saliva
Bleach
NaOH
Explanation:
Blood 7.35-7.45
Bleach 12.6
Saliva 6.2-7.6
Lemon 2-3
HCI 3.01
NaOH 13
B) It is short-wave.
C) 40 percent is reflected by the atmosphere.
D) 60 percent reaches Earth's surface.
E) None of the rays are harmful.
Answers
Answer:
Your answers are B,C, and D
Explanation:
Because a and e are wrong it is these three.
Edit pls mark brainliest