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Why does simple molecular substances have no electrical conductivity?
For something to conduct electricity, it must have two properties: 1. Free moving particles. 2. Charged particles. Simple covalent molecules have neither properties and so it cannot conduct electricity.
What is the charge of Li2X?
The charge of Li₂X depends on the identity of the element X. Lithium (Li) has a +1 charge, so in the compound Li₂X, two lithium ions contribute a total charge of +2. To balance this, the element X must have a charge of -2. Therefore, if X is an anion with a -2 charge, such as oxide (O²⁻) or sulfide (S²⁻), then the overall charge of the compound Li₂X is neutral.
What is the charge of MnO2?
The charge of MnO2 is typically +4 because oxygen is typically assigned a charge of -2, and there are two oxygen atoms in MnO2. This means the manganese atom in MnO2 must have a charge of +4 to balance the charges.
How many electrons must a neutral atom of helium posses?
A neutral atom of helium must possess two electrons. Each electron carries a negative charge of -1, and since helium has a charge of 0 (neutral), the number of electrons must equal the number of protons, which is 2 in the case of helium.
What is the oxidation state of Hg?
The oxidation state of S in HgS is -2. Since Hg is +2, to make a neutral charge S must be -2.
What is the charge on the lead ion in PbS2?
The charge on the lead ion (Pb) in PbS2 is +2. This is because each sulfur atom (S) has a charge of -2, and since there are two sulfur atoms for every lead atom in lead(IV) sulfide (PbS2), the lead ion must have a charge of +2 to balance out the charges in the compound.
What is the charge for Li2O?
The charge for Li2O is 2+. This is because lithium (Li) typically has a +1 charge and oxygen (O) typically has a -2 charge. When combined in Li2O, the total charge must be balanced, resulting in a 2+ overall charge.
What is the charge on X in XCl2?
The charge on X in XCl2 is +2. This is because chlorine typically has a -1 charge and since there are two chlorine atoms in XCl2, the total negative charge from chlorine is -2, therefore X must have a +2 charge to balance it out.
How do you test the thermal insulating properties of three different fabrics when wet and when dry one of the fabrics must be denim?
well heres what you do 1.get 3 empty tins cover them in the test fabrics put thermomoters in them cover the tops and bottoms of the jars in polystyreen test the temp. every 2 mins
The hyperthetical ions z3 plus andq2- combine to form an ionic compound in what properties do these ions combine to produce a neutral compound?
The charges of the ions must balance out, so the ratio of ions will be 3:2 to form a neutral compound. The total positive charge from the z3 plus ion and the total negative charge from the q2- ion must cancel out to give a net charge of zero in the compound.
Why does simple molecular substances have no electrical conductivity?
For something to conduct electricity, it must have two properties: 1. Free moving particles. 2. Charged particles. Simple covalent molecules have neither properties and so it cannot conduct electricity.
What is the charge in ion X in the formula Li2X?
Since Li is a group 1 element with a charge of +1, and there are 2 Li atoms, the overall charge of Li2 in the compound is +2. Therefore, in order for the overall charge of Li2X to be zero (since it is a neutral compound), X must have a charge of -2.
What charge is copper 2 solphide?
Copper II sulphate has variable valency properties, which translates to variable charges.
What is the greatest prime you must consider to test whether 6106 is prime?
What is the greatest prime you must consider to test whether 2834 is prime?
What is the charge on manganese in the formula MnO?
The charge on manganese in the formula MnO is +2. This is because oxygen typically has a charge of -2, so in order to balance the charges in the compound, manganese must have a +2 charge.
What is the charge on lead in the compound Pb(NO2)2?
The charge on lead in the compound Pb(NO2)2 is +2. This is because each nitrite ion (NO2) has a charge of -1, and there are two nitrite ions binding to the lead ion, therefore the lead ion must have a charge of +2 to balance the -2 charge from the nitrite ions.
What is the oxidation number of Ni in Ni(OH)2-?
The oxidation number of Ni in Ni(OH)2- is +2. This is because each hydroxide ion has a charge of -1, and the overall charge of the compound is -1. Therefore, the nickel ion must have a charge of +2 to balance the charge of the two hydroxide ions.
