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What is group number of formula X2O3 when element x with mass 68?
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What is the charge in ion X in the formula X2O3?
+6
What is the oxide formula of element in group lllA of periodic table?
X2O3 as elements in group IIIA are trivalent metals and oxygen is divalent
What is the charge on ion X x2o3?
The charge is 3-.
What is the charge on ion X in X2O3?
3+ :-) Cross the valncies
30.4 grams of X2O3 gas makes 2 atm pressure at 273 C in a 8.96 liter container. So, howmany g.mol is the molar mass of the X atom of the X atom (O:16)?
rams of X2O3 gas makes 2 atm pressure at 273 C in a 8.96 liter container. So, howmany g.mol is the molar mass of the X atom of the X atom (O:16)?
If element X forms the oxides XO and X2O3 the oxidation numbers of element X are what?
Oxygen forms a -2 ion. x0 - x= +2. The compound overall needs to be neutral, so you add up all the charges from the oxygen and add whatever you need to make it neutral. eg: FeO - oxidation state of iron = +2, since oxygen forms -2 and compound is overall neutral. Fe2O3 - -6 from the oxygen. So you need to add +3, and there are two Fe's so you divide it by two - therefore iron is +3. Hope that helps.
What are the different groups of minerals?
IMPORTANT!READ ALL INFORMATION FIRST!Elements: Many pure elements are found in the form of minerals in ores or mines. For example, uncombined carbon is often found in its pure state in the form of graphite or more rarely as diamond. Gold, silver and sulfur are other elements which are also found in its pure state. Even though these are pure elements they qualify to be known as minerals, but no chemical process is required on them further.Oxides: When an ore is found in which one or more elements are combined with oxygen, it is an oxide mineral. These may have chemical formulas of type XO (MgO, ZnO, CuO, etc.), X2O (Cu2O), X2O3 (Al2O3, Fe2O3), XO2 (MnO2, SnO2) and XY2O4 (MgAl2O4, FeCr2O4). The oxide minerals, are mostly of metallic elements. Example: hematite, magnetite, cuprite. Silicates and oxides are the most common types of minerals in volcanoes, especially after an eruption.Carbonates: The carbonate type of minerals are formed when a single carbonate ion (CO32-) reacts with a metal ion of complementing polarity. Example: siderite (FeCO3), smithsonite (ZnCO3), calcite (CaCO3). Carbonate minerals are used in making cement and other bonding material.Sulphates: The mineral class which includes the sulfate ion (SO42-) within its molecular structure, is categorized as sulphate mineral. Minerals like Gypsum (CaSO4·2H2O) and Barite (BaSO4) are examples of sulphate minerals.Organic Minerals: This class of minerals include biogenic substances, genesis or origin of which can be attributed to a geological processes. Organic minerals include all types of oxalates, mellitates, citrates, cyanates, acetates, formates, hydrocarbons, etc. Example of organic mineral includes whewellite, moolooite, mellite, fichtelite, carpathite, evenkite and abelsonite.
