Answer:
First-order with respect to hydrogen.
Explanation:
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In this case, considering that the rate law of this reaction can be expressed via:
If we want to know m, the order of reaction with respect to hydrogen, we need to relate the experiments 1 and 3 in order to get rid of the pressure of ICl:
Thus, we plug in the given rates, and pressures to get:
So we can cancel wout k and 325^n:
Next we solve for m, the order of reaction with respect to hydrogen:
It means it is first-order with respect to hydrogen.
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Answer:
Combing of people or your hair is a chemical change and it is advisable to do so
1)A compound is always formed due to chemical reaction while is mixture not chemical change takes place.
2)Mixtures can be separated easily while compounds can not be separated.
Answer:
Mass = 18 g
Explanation:
Given data:
Number of molecules of Dicarbon hexahydride = 3.58 × 10²³ molecules
Mass of Dicarbon hexahydride = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
3.58 × 10²³ molecules × 1 mol / 6.022 × 10²³ molecules
0.6 mol
Mass of Dicarbon hexahydride:
Mass = number of moles × molar mass
Mass = 0.6 mol × 30 g/mol
Mass = 18 g
Echinoderms contain internal skeletons similar to the kind that vertebrates have. This internal skeleton is made up of calcium carbonate. They are marine animals. Some species of the echinoderm phylum include starfish, sea cucumbers and sea urchins.
