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hoa [83]
2 years ago
6

Explain the Properties of Ionic and covalent substances. ​

Chemistry
2 answers:
olga2289 [7]2 years ago
8 0

Answer:

Ionic compounds:  They have high melting points and boiling points. That is, ionic compounds are non-volatile.

Covalent compounds:   They have usually low melting points and boiling points. That is, covalent compounds are usually volatile.

melisa1 [442]2 years ago
5 0

Answer:

Explanation:

Ionic compounds

They have high melting points and boiling points. That is, ionic compounds are non-volatile.

Covalent compounds

They have usually low melting points and boiling points. That is, covalent compounds are usually volatile.

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Answer:

The four coefficients in order, separated by commas are 1, 8, 5, 6

Explanation:

We count the atoms in order to balance this combustion reaction. In combustion reactions, the products are always water and carbon dioxide.

C₅H₁₂  +  ?O₂→  ?CO₂ + ?H₂O

We have 12 hydrogen in right side and we can balance with 6 in the left side. But the number of oxygen is odd. We add 2 in the  right side, so we have 24 H, and in the product side we add a 12.

As we add 2 in the C₅H₁₂, we have 10 C, so we must add 10 to the CO₂ in the product side.

Let's count the oxygens: 20 from the CO₂ + 12 from the water = 32.

We add 16 in the reactant side. Balanced equation is:

2C₅H₁₂  + 16O₂→  10CO₂ + 12H₂O

We also can divide by /2 in order to have the lowest stoichiometry

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