Distinguish between metals, ionic compounds, and covalent compounds using information about the physical properties of a compoun
d. Distinguish between metals, ionic compounds, and covalent compounds using the empirical formula of a compound.
1 answer:
Distinguish between metals, ionic compounds, and covalent compounds using information about the physical properties of a compound.
Metal Compounds:
- Metal compounds have very High melting and boiling points
- They are good Conductors of heat and electricity
- They can be converted into different shapes without any breakage.
- They are ductile and magnetic.
Ionic compounds
- Ionic compounds exist in a crystalline structure that is stable. Hence, they higher melting and boiling points than covalent compounds.
- They don't conduct electricity when they are as ionic compounds. But, when they are dissolved in water the solution becomes conductor of electricity.
- These compounds exist as solids only.
- These compounds are Non magnetic.
Covalent compounds
- They have lower belting and boiling points when compared to ionic bonds.
- Covalent compounds are non conductor of electricity.
- They can take any form like liquid, solid or gas.
- They are Non magnetic.
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Answer:
Answer: 0.405g
Explanation:
Molar Mass of Be = 9g/mol
Number of mole of Be = 0.045mol
Mass conc. Of Be = 0.045 x 9 = 0.405g
We know that [OH⁻] * [H⁺] = 10⁻¹⁴
plugging the value of [H⁺]
[OH⁻] * 1.2 * 10⁻³ = 10⁻¹⁴
[OH⁻] = 10⁻¹⁴ * (10³/1.2)
[OH⁻] = 833.3 * 10⁻¹⁴
[OH⁻] = 8.33 * 10⁻¹²
Answer:
7) 50 8)4
Explanation:
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