CHEMISTRY HIGH SCHOOL

An atom that has gained or lost electrons is called _____.a cation
an ion
inert
a molecule

Answers

Answer 1
Answer: It called cation, Well, When an atom gains or loses an electron, itattains a net charge and becomes an ion. When electrons are lost, theresulting ion is called cation and when electrons are gained, theresulting ion is called an anion. So, Cations have a net positivecharge, while anions have a net negative charge. it is true.
Answer 2
Answer:

An atom that has gained or lost electrons is called an ion. The correct answer is option b.

An ion is an atom or molecule with an uneven number of protons and electrons that produces a net electrical charge.

When an atom gains one or more electrons, it becomes negatively charged and is called an anion. When an atom loses one or more electrons, it becomes positively charged and is called a cation.

For example, when sodium (Na) loses one electron, it becomes a positively charged ion or cation:

\rm Na\rightarrow Na^+ + e^-

Similarly, when chlorine (Cl) gains one electron, it becomes a negatively charged ion or anion:

\rm Cl + e^- \rightarrow Cl^-

Therefore, an ion is an atom that has gained or lost electrons. Option b is the correct answer.

Learn more about ion here:

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Density is a measure of mass divided by volume

weight divided by area

volume divided by weight

mass divided by area

Answers

Density is mass divided by volume.

Why does hybridization of orbitals occur?

Answers

Hybridization of orbitals is the concept of incorporation atomic orbitals into new hybrid orbitals appropriate for the pairing of electrons to form chemical bonds in valence bond theory.

When determining an element identity what is the most important Subatomic part to look at?

Answers

Answer: Protons

Explanation: When determining an element identity the most important Subatomic part to look at is the number of protons in the nucleus determines the identity of an atom .

Describe the difference between the terms “element”, “compound”, “molecule”, and “salt”.

Answers

You can define an element as a substance with only one type of atom in(e.g. only sulphur atoms). If a substance has more than one type of atomin, then it is either a compound or a mixture, depending on whether theelements have bonded. Examples of elements are:

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Hydrocarbons are separated from each other by a process called cracking distillation. a. True
b. False

Answers

True, cracking distillation is one process used to break hydrocarbons into smaller and more useful parts. This is achieved by using high temperatures and pressures with a catalyst. The most common catalyst used are the zeolites.

Answer:

Correct answer is FALSE I just tested it and it came out right.

Explanation:

What is the percentage of water in the hydrate CoCl2 • 6H2O? Can someone help me with this one?

Answers

Okay, to do this you have to work with the relative molecular mass (RMM). You can get this from looking at the periodic table.

The RMM for the whole molecule is:
58.933 + (2 x 35.453) + (12 x 1.008) + (6 x 15.9994) = 237.96

Then you work out the RMM for water:
(2 x 1.008) + 15.9994 = 18.0154

As there are 6 moles of water in this molecule then multiply the RMM of H2O by 6 = 108.0924

Finally, divide the total H2O RMM by the total molecule RMM and multiply by 100 to get a percentage:
(108.0925 / 237.96) x 100 = 45.42%
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