K2Cr2O7 is an ionic compound. It is composed of potassium ions (K+) and dichromate ions (Cr2O7 2-), which are held together by ionic bonds.
BO is a molecular compound because it is composed of nonmetals (boron and oxygen) and forms covalent bonds.
Cr is a transition metal element, specifically chromium. It is not considered ionic or molecular on its own.
H2O is a molecular compound.
Cr2O3 is an ionic compound. It consists of chromium ions (Cr3+) and oxide ions (O2-) held together by ionic bonds.
Glucose is a molecular compound, not ionic. It consists of covalent bonds between its carbon, hydrogen, and oxygen atoms.
K2Cr2O7 is a formula unit because it represents the simplest whole-number ratio of ions in the compound potassium dichromate. Formula units are used for ionic compounds, while molecules are used for covalent compounds.
The molecular formula for potassium dichromate is K2Cr2O7. The percentage of oxygen in potassium dichromate is calculated as follows: Molecular weight of oxygen: 16 g/mol Molecular weight of K2Cr2O7: 294 g/mol Percentage of oxygen in K2Cr2O7: (16 g/mol / 294 g/mol) * 100% = 5.44% Therefore, oxygen constitutes approximately 5.44% of the compound potassium dichromate.
Ionic Molecular
ionic
molecular
Molecular
PtO2 is ionic
ionic
ionic
it is ionic
It is molecular
Molecular compound