Answer:
Explanation:
The atomic mass of <em>nickel</em> is 58.963g/mol. Thus, one mole of nickel weighs "exactly" 58.693g.
How much nickel does every coin contain?
How many times 58.693g contains 1.25g?
That means that you need to have 47 coins of nickel to have one mole of nickel.
Flame emission is a method of chemical that uses intensity of light from a flame.
I'll be less soluble when the temperature increases
The coefficient in a chemical formula represents the amount of each chemical present. The amount of a substance is measured in moles.
The relative mass of an electron is 1/1840 the mass of a C-12 atom. Hence, option B is correct.
<h3>What is an electron?</h3>
An electron is a negatively charged subatomic particle.
An electron is very small, about 1/1,837th the mass of a proton. Atomic Weights Atomic mass of an atom is expressed in atomic mass units (amu) which are approximately grams. A more conventional way of expressing the mass of an atom is Atomic Weight.
Atomic mass units are expressed relative to the atomic mass unit of an unbound neutral carbon-12 atom.
Hence, the relative mass of an electron is 1/1840 the mass of a C-12 atom.
Learn more about the electron here:
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