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3 years ago

Which which atom is held together by covalent bonds?

1 answer:

4 0

Covalent bonds are strong bonds. Atoms that share pairs of electrons form molecules. A molecule is a group of atoms held together by covalent bonds. A diatomic molecule is a molecule containing only two atoms.

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The electrolyte of the following is:

ozzi

An electrolyte is a term used to describe a compound that can dissociate into ions as it is nothing but an ionic compound, a salt made up of a positively charged cation and negatively charged anion.

Here the correct answer is D. Since there are no hydrocarbons or any other organic compound, that do not possess partial let alone full charges, all of them can dissociate in solution to give their ions.

This allows for the solution to be able to conduct electricity.

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3 years ago

The ------------- the temperature of an object, the faster the molecules vibrate.

labwork [276]

Higher, they have more energy so they move faster

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3 years ago

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Why does knowing the mass of an object not help you identify what material the object is made from?

jeka57 [31]

Because mass is not always the same for objects made from the same material. Just because an object has the same mass as another doesn’t mean they are the same material.

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3 years ago

What is the molecular formula for a compound that is 44.87% potassium, 36.7%

Phoenix [80]

Answer:

Molecular formula: S4K8O16 empirical formula: SK2O4

Explanation:

First we find the moles of each by first finding grams (using the percent) and then using stoichiometry to convert into moles:

Sulfur: 696 *.18 = 125.28grams S* $\frac{1 mole S}{32.065 g S} = 3.907 moles S$

Potassium: 696 *.4487 = 312.2952 * $\frac{1 mole K}{39.08 g K}$ = 7.99117 mole K

Oxygen: 696 * .367 = 255.432 * $\frac{1 mol O}{16g O}$ = 15.9654 mole O

Then we divide each value by the atom with the smallest number of moles to find the mole ratio:

3.907/3.907= 1

7.99117 mole K/ 3.907= 2.043

15.9654 mole O/ 3.907= 4.08

The empirical formula is SK2O4

To find the molecular formula, we divide the mass given (696) by the mass of the empirical formula (174.22) to get 4. We then divide each atom by 4.

Molecular formula: S4K8O16

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3 years ago

Arrange in terms of increasing atomic radius. From smallest to largest.<br> S, F, Sr, Na, Ga

BaLLatris [955]

Answer:

F<S<Na<Ga<Sr

Explanation:

Atomic radius increased from the right of the periodic table to left, and from the top to the down

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3 years ago

Which which atom is held together by covalent bonds?​

Which which atom is held together by covalent bonds?