K2Se is potassium selenide or more precisely dipotassium selenide. As for KSe that probably doesn't exist, if it did it would be monopotassium selenide
K2PbO2
The compound name for SiI4 is tetrasilane.
It is impossible to mix potassium and tellurium in a chemical reaction because to form a stable compound, you get 8 valence electrons. Potassium is in group I, so it has 1 electron. Tellurium is in group XVI, so it has six electrons. 1+6=7, so it is impossible UNLESS you have two potassium atoms to form K2Te.
The compound name of Al2O3 is aluminum oxide.
The compound name for SiI4 is silicon tetraiodide.
K2PbO2
Chemical formula for Potassium tellurium is K2Te - theivendran p, Jr. Asst (P&D) Pondicherry University
The name of this compound is iodine heptafluoride.
The compound name for 7H2O is heptahydrate.
The compound name for SiI4 is tetrasilane.
Tetranitrogen tetraselenide is the name of the compound.
The name of the compound Cl2O3 is dichlorine trioxide.
The compound name for MnBr2 is manganese(II) bromide and the compound name for NaPO4 is sodium phosphate.
It is impossible to mix potassium and tellurium in a chemical reaction because to form a stable compound, you get 8 valence electrons. Potassium is in group I, so it has 1 electron. Tellurium is in group XVI, so it has six electrons. 1+6=7, so it is impossible UNLESS you have two potassium atoms to form K2Te.
The name of the compound H2C2O4 is oxalic acid.
The compound name of Al2O3 is aluminum oxide.
The compound name for N5S10 is pentanitrogen decasulfide.