B.) If the solid is not conductive, the bonds are covalent.
C.) If the solid is conductive, the bonds are metallic.
D.) If the solid is not conductive, the bonds are metallic.
Answer is: C.) If the solid is conductive, the bonds are metallic.
1) Substances with ionic bond conduct an electric current in liquid, but not in solid state, because in liquids ions are mobile, contrary to solids where ions are fixed.
2) Substances with covalent bond not conduct an electric current in liquid and solid state, because they not have free ions or electrons.
3) Substances with metallic bond conduct an electric current in liquid and solid state, because they have mobile electrons. Most metals have strong metallic bond, because strong electrostatic attractive force between valence electrons (metals usually have low ionization energy and lose electrons easy) and positively charged metal ions.
Answer:C.) If the solid is conductive, the bonds are metallic.
Explanation:
what happened millions of years ago
the time prior to the use of written records
Answer:
To determine the number of constitutional isomers of C4H9Br, we can generate different structures by rearranging the atoms. The molecular formula C4H9Br implies a carbon chain with four carbon atoms, and one bromine atom.
Here are the constitutional isomers for C4H9Br:
1. **n-Butyl Bromide**: This is the straight-chain isomer where the bromine atom is attached to the end carbon atom.
2. **Isobutyl Bromide**: This is an isomer with a branched chain. The bromine atom is attached to one of the middle carbon atoms in the chain.
3. **sec-Butyl Bromide**: Another branched isomer where the bromine atom is attached to one of the middle carbon atoms but in a different position compared to isobutyl bromide.
4. **tert-Butyl Bromide**: This isomer has a highly branched structure where the bromine atom is attached to a carbon atom that is part of a tertiary (3°) carbon center.
A covalent bond can form between atoms of equal electronegativity, where electrons are shared between the atoms.
The bond that can form between atoms of equal electronegativity is a covalent bond.
In a covalent bond, atoms share electrons to achieve a full outer electron shell. This type of bond occurs between nonmetallic elements or between identical atoms.
For example, in a σ (sigma) bond between two hydrogen (H) atoms, each hydrogen atom contributes one electron to the bond, resulting in a shared pair of electrons. Since hydrogen atoms have the same electronegativity, the bond is covalent.
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