Which compound contains both ionic and covalent

1 answer:

6 0

(1) CaCO3 is your answer. The positive ion is $\text{Ca}^{2+$ and the negative radical ion is $\text{CO}_3^{-}$ . There exists covalent bonds between the carbon and oxygen atoms in the $\text{CO}_3^{-}$ .

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Which of the following is not true in regard to noble gases? A. These elements have full outermost shells. B. These elements are

Likurg_2 [28]

Answer:

D.These elements tend to gain or lose electrons easily is <em>incorrect.</em>

Explanation:

Noble gasses consist of atoms that have full rings of electrons. Electrons are what bond atoms together to create chemical compounds, and incomplete rings are needed for the process.

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3 years ago

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an aqueous solution has a mass of 490 grams containing 8.5×5103 gram of calcium ions. the concentration of calcium ions is in th

Alex777 [14]

There are several various of expressing concentration. For instance, mass percent, volume percent, Molarity, Normality, Molality, etc.

In present case, weight of solute and solvent are given, so it will be convenient to express concentration in terms of mass percent.

Given: weight of solute (Ca2+) = 8500 g
weight of solvent (water) = 490 g.
Therefore, mass of solution = 8500 + 490 = 8990 g

Now, mass percent = $\frac{\tect{Weight of solute}}{\text{Weight of solution}} X 100$
= $\frac{\tect{8500}}{\text{8990}} X 100$
= 94.55 %

Answer: Concentration of calcium ions is in this solution is 94.55 % (w/W)

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3 years ago

When reacting a solution of the following secondary hydroxyl amine with 2-butene under very high temperatures, the desired produ

Naddika [18.5K]

Answer:

Mechanism for top reaction is combustion while the side product at bottom path oximes

Explanation:

Hydroxiamine is a reducing agent that requires high temperature to combust in it'd ageous state to produced oxime while water is eliminated. The reverse is the case because the production of water during combustion I does not yield the fight result as it can e very irritating.

Increased temperature stimulates the protons to become free to combust and react with 2 butene and other aldehyde during chemical reaction.

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Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SI2. Enter the number of bo

mariarad [96]

Answer:

4, 16,

Explanation:

SI2 is sulphur diiodide. Sulphur is in group sixteen (six valence electrons) while iodine is in group 17(seven valence electrons).

Since there are two iodine atoms and one sulphur atom, the molecule has twenty valence electrons. Out of these twenty valence electrons, only four are bonding electrons. The other sixteen electrons include the four nonbonding electrons found on sulphur and the twelve non bonding electrons found on the two iodine atoms having six nonbonding electrons each.

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Which of these foods is produced using bacteria?

Mazyrski [523]

Answer:

Explanation:

Cheese is rotten milk

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