Which statement about covalent bonds and electrons is true?

2 answers:

4 0

Are these the following choices the ones you have?

A. The atom with more electromagnetically takes more than its share of the electrons.
B. Electrons in covalents bonds are shared equally between both atoms. 
C. All covalent bonds are the same. 
D. If an atom loses an electron, it is still neutral.

Illusion [34]3 years ago

3 0

D) Eectrons in covalent bonds are not always shared equally.

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When magnesium reacts with sulfuric acid the products are magnesium sulfate and hydrogen. If there are 15 grams of magnesium at

Sergeeva-Olga [200]

Answer: 15 grams of magnesium will be present in the magnesium sulfate

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

The balanced chemical reaction is:

$Mg+H_2SO_4\rightarrow MgSO_4+H_2$

As the mass remains conserved at the end of the reaction, there will be 15 grams of Magnesium in magnesium sulphate.

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Explanation:

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<h3>Answer;</h3>

A dense substance that is hard and incompressible

<h3>Explanation;</h3>

Crystals are solids that are made up of particles such as molecules, atoms or ions, which are arrange in a highly ordered microscopic structure, forming a crystal lattice which extends in all directions.
Examples of crystals include quartz, that is made up of silicon (iV) oxide molecules that are arranged in a lattice,table salt is another example that is made up of sodium and chloride ions that are arranged in a lattice
Crystals are very ordered, they may be made up of atoms of the same elements or atoms of different elements such as in the case of table salt.

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Write formulas and names for two binary molecular compounds

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Answer:

NaCl sodium chloride

HF hydrogen flouride

Explanation:

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3 years ago

Os This question is about elements from these families alkali metals, alkaline earth metals (Group