<u>Answer:</u> The given isotope of tin has 50 protons and 69 neutrons.
<u>Explanation:</u>
Atomic number is defined as the number of protons or number of electrons that are present in neutral atom. It is represented as Z.
Atomic number = Number of protons = Number of electrons
Mass number is defined as the sum of number of protons and number of neutrons. It is represented as A.
Mass number = Number of protons + Number of neutrons
We are given:
An isotope having representation 
Mass number of Sn = 19
Atomic number = 50
Number of neutrons = Mass number - Atomic number = 119 - 50 = 69
Hence, the given isotope of tin has 50 protons and 69 neutrons.
Answer:Ionic compounds form when positive and negative ions share electrons and form an ionic bond. ... The positive ion, called a cation, is listed first in an ionic compound formula, followed by the negative ion, called an anion. A balanced formula has a neutral electrical charge or net charge of zero.
Explanation:Simple ions:
Perchlorate ClO4- IO3-
Chlorate ClO3- BrO3-
Chlorite ClO2-
Hypochlorite OCl- OBr-
i tried my hardest and its not aExplanation:
Answer:
166.56g of NH3 are produced
Explanation:
The reaction of N2 with H2 to produce NH3 is:
N2 + 3H2 → 2NH3
<em>Where 1 mole of N2 produce 2 moles of NH3</em>
<em />
4.89 moles of N2 with excess of H2 produce:
4.89 moles N2 * (2 moles NH3 / 1 mole N2) = 9.78 moles NH3
As molar mass of NH3 is 17.031g/mol, mass of NH3 produced is:
9.78 moles * (17.031g / mol) =
<h3>166.56g of NH3 are produced</h3>
The answer is D, it controls what comes in & out the cell, well i hope so!