Al belongs to group III elements in periodic table so it forms Al3+ ion. check w the formula Al2O3: 2x(+3) from Al = +6 which equal to 3x(-2) from O. so its balanced.
Al ionizes from neutral to Al3+ and 3 e- to bond w O.
Answer:
The three ways to in which the hydrocarbons are represented are;
a. The ball and stick model
b. Condensed structural formula
c. Skeletal structure
The molecular formula are
a. C₇H₁₆
b. C₆H₁₄
c. C₅H₁₂
Explanation:
a. The ball and stick model of organic compounds, displays the atoms and bonds in three dimensions, representing the atoms by spares and the bonds by rods
b. The condensed structural formula are similar to the structural formula with the difference that the formula is written in a linear fashion which conserves space and increases ease of writing and are written out faster.
c. In the skeletal structure diagram, the atoms are of the organic compound are combined together in the structural drawing of the essential features of the organic compound. In essence, a skeletal structure, depicts the skeleton of a compound as it is made up of the molecule's skeletal atoms.
During the melting of ice in the mouth, the mouth loses heat and feels colder.
<h3>What is the heat change that occurs in melting?</h3>
Melting is the process by which when a solid absorbs heat from the surroundings, it changes to liquid.
Therefore, the melting of a solid is an endothermic process.
In the system of ice melting in the mouth, the ice molecule absorbs heat energy from the mouth in order to melt.
Similarly, when the temperature of the water rose to 10.0 degrees, the water at 0.00 degrees absorbs heat from the mouth.
Therefore, the mouth loses heat and feels colder.
In conclusion, the melting of ice involves ice absorbing heat from the surroundings.
Lear more about melting of ice at: brainly.com/question/23557049
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Answer:
The bond will be ionic. All atoms with the same number of electron shells have an equal electronegativity.
The wrong one is
<span>radioactive half-life is increased by heating the isotope.</span>