The isotope notation : 
<h3>
Further explanation
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Given
53 protons and 20 neutron
Required
The isotope notation
Solution
Isotopes are elements that have the same atomic number with a different mass number
The following element notation,
X = symbol of element
A = mass number
= number of protons + number of neutrons
Z = atomic number
= number of protons = number of electrons, on neutral elements
So the mass number of element = 5 + 6 11
Atomic number = 5
The symbol :
Answer:
The mass of oxygen that participates is 2.72g
Explanation:
Oxygen gas is O2.
O2 has the molar mass of approximately 32.
Mass can be calculated by multiplying the molar mass and the moles.
Moles = Mass/Molar mass
therefore, Mass= Moles*Molar mass
Which is equal to 32*0.085= 2.72g
Mixtures:
physically combined
components retain properties
compounds:
chemically combined
components change properties
both:
made of elements
variable proportions
fixed properties
2 or more compounds
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Aspartic acid<span> (abbreviated as </span>Asp<span> or </span>D<span>; encoded by the codons [GAU and GAC]), also known as </span>aspartate<span> in its deprotonated form, is an α-amino acid that is used in the biosynthesis of proteins.</span><span> Similar to all other amino acids it contains an amino group and a carboxylic acid. Its α-amino group is in the protonated −NH+3 form under physiological conditions, while its α-carboxylic acid group is deprotonated −COO</span>−<span> under physiological conditions. Aspartic acid has an acidic side chain (CH</span>2<span>COOH) which reacts with other amino acids, enzymes and proteins in the body.</span>
The molecules in liquid water are held together by relatively strong hydrogen bonds and its enthalpy of vaporization, 40.65 kJ/mol is more than five times the energy required to heat the same quantity of water from: 0 °C to 100 °C (cp = 75.3 J K−1 mol−1).
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