Answer: Option (a) is the correct answer.
Explanation:
A catalyst is the substance which helps in increasing the rate of a reaction without itself getting consumed in the reaction.
A catalyst changes the path of reaction so that molecules with lower energy can easily participate in the reaction. As a result, formation of products increases.
Thus, we can conclude that out of the given options, a catalyst is not used up in a reaction.
The correct answer is:
discovered the necleusproposed the proton existencediscovered fusion reaction from fission
Explanation:
Rutherford (1871–1937) was subject for an extraordinary array of discoveries in the fields of radioactivity and nuclear physics. He identified alpha and beta rays, set forth the rules of radioactive decay, and recognized alpha particles as helium nuclei.In 1911, Rutherford realized that atoms not detached, they are managed by something else, a nucleus. He noticed that the preponderance of an atom's mass is contemplated at a very tiny point in the center where the nucleus was determined. The nucleus is a positive force enclosed by electrons which are negative free flying particles.
pledge believed that
(1) religion had no place in national politics
(2) Congress should repeal Prohibition
(3) alcohol consumption was damaging to society
(4) only the government can solve social
problems
Total, 2.28916 × 10²⁴ atoms of carbon in 3.8 moles of methane.
To calculate the number of atoms of carbon in 3.8 moles of methane (CH₄), we need to consider the molecular formula of methane, which is CH₄. This indicates that each molecule of methane contains one carbon atom (C) and four hydrogen atoms (H).
First, let's find total number of carbon atoms in 3.8 moles of methane:
Number of moles of carbon in 1 mole of methane (CH₄) = 1 mole (because there is 1 carbon atom in each molecule of CH₄)
Number of moles of carbon in 3.8 moles of methane = 3.8 moles
Now, we'll use Avogadro's number to convert moles to the number of atoms:
Avogadro's number (NA) = 6.022 × 10²³ atoms/mol
Number of carbon atoms in 3.8 moles of methane = 3.8 moles × Avogadro's number
Number of carbon atoms in 3.8 moles of methane = 3.8 moles × 6.022 × 10²³ atoms/mol
Now, let's calculate:
Number of carbon atoms in 3.8 moles of methane ≈ 2.28916 × 10²⁴ atoms
So, there are approximately 2.28916 × 10²⁴ atoms of carbon in 3.8 moles of methane.
To know more about carbon atoms here
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Answer: Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface. ... During the day, sunlight heats the ground, which in turn heats the air directly above it via conduction.
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