Answer:
C + 2H2 ⇒ CH4
Explanation:
In order to balance a chemical equation you need to make sure that the number of atoms on both sides are equal
C + H2 = CH4
C = 1
H = 2
Products:
C = 1
H = 4
H2 = 2 × 2 = 4
C + 2H2 ⇒ CH4
Hope this helps.
Answer: This is because, the stem symbolises the bronchioles of the lung through which oxygen is transfered to the lungs. The grabes represent the lungs, left and right respectively.
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Its TRUE because the hypothesis is only true when you have facts behind it has to be testable
Answer:
Process by which electric current is passed through a substance to effect a chemical change.
Explanation:
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Answer:
A. 3A + 2D → 2C + F
B. B is an intermediate
C. rate = k[A]³
D. rate = k`[D]²
Explanation:
Part A
The overall reaction is the sum of all the elementary steps:
3A→B+C
+
B+2D→C+F
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3A + 2D → 2C + F
Part B
A reaction intermediate is one that participates in the elementary steps, but it is not a product. Notice B is produced in the first step and consumed in the second, therefore it is an intermediate species.
Part C
The rate law is the product of the reaction constant, k, times the concentration of the reactants raised to the power of their coefficients in the balanced reaction assuming that it is the slow step in the reaction mechanism.
rate = k[A]³
Part D
Again as in part C:
rate = k [D]² ( B is not included since as we saw it is an intermediate )
