0.384 moles of atoms are in 5.00 g of ¹³C of isotope.
Moles of any substance will be calculate by dividing the given mass of the substance to the molar mass of that substance.
In the question given that:
Given mass of carbon = 5grams (because isotope of carbon is present ¹³C)
Molar mass of carbon = 13g/mol (because isotope of carbon is present ¹³C)
Moles of carbon = 5grams / 13g/mol
Moles = 0.384 moles
Hence, 0.384 moles is the required moles.
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Answer:
2
Explanation:
Pure water is not a mixture....it is only water
gold ...is only gold
2. air IS a mixture of various gases.....nitrogen , oxygen, co2 etc
Option 2: The air in your room. The air in your room is an example of a mixture because it consists of various gases that can be separated from each other.
The correct answer is Option 2: The air in your room.
A mixture is a combination of two or more substances that are not chemically bonded together. The air in your room is a mixture because it consists of various gases such as oxygen, nitrogen, carbon dioxide, and others. Each gas retains its individual properties and can be separated from the others.
On the other hand, pure water is a compound because it consists of two hydrogen atoms bonded to an oxygen atom, while gold is an element because it is composed of only gold atoms.
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Answer: It is a negative ion that has one more valence electron than a neutral bromine atom.
Explanation:
Answer:
Explanation:
Answer:
Alkali.
Alkali, a different word for base in chemistry, has some distinctions. Although all bases are alkalis, not all alkalis are bases.
Answer:
Rutherford's atomic model explained how the electrons surrounded the nucleus of protons and neutrons. His model showed how J. J. Thomson's Plum Pudding model was incorrect.
Answer:Rutherford model of an atom shows that an atom is mostly an empty space,with electrons orbiting a fixed positively charged nucleus in set.
Explanation: