0
Why does hydrogen have the above oxidation number with other non metals?
Wiki User
∙ 11y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Which metal will displace hydrogen from an acid?
zinc magnesium aluminum iron nickel tin lead
Which of the following is an example of redox reaction-?
A redox reaction (reduction and oxidation reaction) is a reaction in which there is a transfer of electrons. When an element is reduced, it gains electrons and its oxidation number is reduced. When an element is oxidized, it loses electrons and its oxidation number increases. Reduction and oxidation always happen at the same time.There are seven rules to redox reactions and the formulas within them. # The oxidation number of a free element is zero (0). This includes Nitrogen (N2), Helium, Oxygen (O2), Ozone (O3) and S8. (Because there is no transfer of electrons, of course there would be no oxidation number!) # The oxidation number of a simple ion is its charge. For example, the oxidation number of Cl- is -1 and the oxidation number of Al3+ is +3. # The metals in Groups 1 and 2 (or 1A and 2A) have oxidation numbers of +1 and +2 respectively. # Hydrogen in combination usually has an oxidation number of +1. An exception to this rule are the metal hydrides (such as NaH), in which hydrogen has the oxidation number of -1. In other words, with Group 1 elements, Hydrogen will be -1. # Oxygen in combination usually has an oxidation number of -2. Exceptions to this rule include peroxide (such as H2O2, when Oxygen has to be -1) and oxygen-fluorine compounds, in which the oxidation number of oxygen is positive. This is because oxygen is the second-most electronegative element and usually takes electrons, but fluorine is the absolute most electronegative element and will take oxygen's electrons. # In a molecular or ionic compound, the sum of oxidation number totals must add to zero, since these compounds are electrically neutral. # In a polyatomic ion, the sum of the oxidation number totals must add to the charge of the ion.With these rules in mind, we'll look at the formula in the synthesis of hydrogen and oxygen to make water.2H2 + O2 => 2H20Pure Hydrogen and pure Oxygen have an oxidation number of zero because of rule number 1.In water, hydrogen has an oxidation number of +1 (rule 4) and oxygen would have an oxygen would have an oxidation number of -2 (rule 5). Hydrogen, therefore, is oxidized and oxygen is reduced.
Why is hydrogen listed in column 1 even though it is not a metal?
Hydrogen is not exactly a metal, but has a bonding charge of +1, meaning that it will only bond with materials with negative values. Usually only metals have positive bonding properties, and non-metals the negative.See:Is_hydrogen_a_metal_nonmetal_or_metalloidFor further details.
What is an example of oxidation water evaporating sugar melting paper burning or all of the above?
Burning of paper is an oxidation reaction.
Is it true or false that hydrogen is considered to be a metal?
Hydrogen is a non-metal. Hydrogen is a colorless, odorless, and tasteless gas that is the most abundant element in the known universe. It is the lightest and simplest having only one proton and one electron. Although hydrogen has an ns1 electron configuration just like alkali metals, it is still not metal because it varies greatly from the alkali metals as it forms cations (H+) more reluctantly than other alkali metals. Because hydrogen is a nonmetal and forms H–(hydride anions), it is placed above the halogens in the periodic table. Hydrogen also forms H2dihydrogen like halogens. However, hydrogen is very different from halogens. Hydrogen has a much smaller electron affinity than halogens.
Why hydrogen is placed above alkali metals and not above non metals in modern periodic table?
The electron configuration of hydrogen is similar with that of alkali metals.
Why is hydrogen (H) placed with elements in Group 1A?
Properties of Hydrogen. Hydrogen is a nonmetal and is placed above group in the Periodic Table because it has ns1 electron configuration like the alkali metals.
Which metal will displace hydrogen from an acid?
zinc magnesium aluminum iron nickel tin lead
Which of the following is an example of redox reaction-?
A redox reaction (reduction and oxidation reaction) is a reaction in which there is a transfer of electrons. When an element is reduced, it gains electrons and its oxidation number is reduced. When an element is oxidized, it loses electrons and its oxidation number increases. Reduction and oxidation always happen at the same time.There are seven rules to redox reactions and the formulas within them. # The oxidation number of a free element is zero (0). This includes Nitrogen (N2), Helium, Oxygen (O2), Ozone (O3) and S8. (Because there is no transfer of electrons, of course there would be no oxidation number!) # The oxidation number of a simple ion is its charge. For example, the oxidation number of Cl- is -1 and the oxidation number of Al3+ is +3. # The metals in Groups 1 and 2 (or 1A and 2A) have oxidation numbers of +1 and +2 respectively. # Hydrogen in combination usually has an oxidation number of +1. An exception to this rule are the metal hydrides (such as NaH), in which hydrogen has the oxidation number of -1. In other words, with Group 1 elements, Hydrogen will be -1. # Oxygen in combination usually has an oxidation number of -2. Exceptions to this rule include peroxide (such as H2O2, when Oxygen has to be -1) and oxygen-fluorine compounds, in which the oxidation number of oxygen is positive. This is because oxygen is the second-most electronegative element and usually takes electrons, but fluorine is the absolute most electronegative element and will take oxygen's electrons. # In a molecular or ionic compound, the sum of oxidation number totals must add to zero, since these compounds are electrically neutral. # In a polyatomic ion, the sum of the oxidation number totals must add to the charge of the ion.With these rules in mind, we'll look at the formula in the synthesis of hydrogen and oxygen to make water.2H2 + O2 => 2H20Pure Hydrogen and pure Oxygen have an oxidation number of zero because of rule number 1.In water, hydrogen has an oxidation number of +1 (rule 4) and oxygen would have an oxygen would have an oxidation number of -2 (rule 5). Hydrogen, therefore, is oxidized and oxygen is reduced.
Does hydrogen gas liberate when metals react with carbonic acid?
By definition metals above hydrogen should react with acids to produce hydrogen and a metal salt when mixed, but carbonic acid is a weak acid and it won't react as much like sulfuric acid.
What metal works best to displace hydrogen's from acid?
YES METALS DISPLACES HYDROGEN FROM ACID FOR EX- Zn+H2SO4----->ZnSO4 + H2
What is the correct name for compound Cr2O3?
For ionic compounds such as the one mentioned above, naming them is relatively easy. As we all know, an ionic compound consists of a metal ion(which is usually positive) and a negative ion. Hence, the names for metallic compounds are always in the following format: Name of metal + Name of negative ion However, do take note that for transition metals, the oxidation state has to be included. This is because transition metals have multiple oxidation states. The oxidation state of the metal is presented by: Metal (oxidation number). For example, rust is Iron (III) oxide. Cr2O3 is hence named chromium (III) oxide.
What is the equation for zinc plus sulfuric acid?
Sulphurc acid + zinc -------> zinc sulphate + hydrogen H2SO4 + Zn -------> ZnSO4 + H2 For the purposes of the above equation, assume that the oxidation number of zinc is 2+.
What two metals will react with dilute hydrochloric acid?
Two metals that will react with dilute hydrochloric acid are zinc and magnesium.
What happends when magnesium reacts with acid?
Magnesium, like all metals above copper on a standard reactivity series chart, will liberate hydrogen gas.
Why hydrogen is placed above alkali metals and not above non-metals in Modern Periodic Table?
It is much more common for hydrogen to lose an electron and become H+ than it is for it to become H- (like a halogen would), as in a hydride. Because it is possible for either behavior, though, some periodic tables DO show hydrogen in group 17. Some show it in group 1. Some show both, and some show hydrogen sitting in the middle by itself. It's a tricky one.
Which group is hydrogen and why is it placed in group you instead of the non metallic group?
Hydrogen is a group 1 period 1 element. This means it contains only 1 electron. It is place above the alkali metals because if it were with the non-metals it would have to have more electrons. Most diagrams of the periodic table have a divide between it and the alkali metals to remind people of the difference.
