Ions and Electron Gain

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What is the role of reactants in a chemical reaction?

They are substances that are catalysts

They are substances that are produced

They are substances that are changed (correct)

They are substances that are not changed

How is a chemical equation of a reaction typically represented?

Using words or symbols for the substances involved (correct)

Using mathematical equations

Using words only, no symbols

Using only symbols without words

Which types of compounds fall into the categories of organic and inorganic compounds?

Metallic and non-metallic compounds

Compounds containing carbon and hydrogen, and others (correct)

Compounds with only one type of element

Ionic and covalent compounds

Why are organic compounds called 'organic'?

Because they are composed of carbon and hydrogen Signup and view all the answers

How are reactants and products represented in a chemical equation?

Reactants before the arrow, products after the arrow Signup and view all the answers

What information does the chemical formula of a compound provide?

The number of atoms of each element in the molecule Signup and view all the answers

What is a molecule?

A general term used to describe two or more atoms joined by chemical bonds Signup and view all the answers

Which type of atoms do not usually react with other atoms?

Noble Gases Signup and view all the answers

What is the role of valence electrons in chemical bonding?

They determine the reactivity and bonding behavior of an atom Signup and view all the answers

Atoms form charged particles known as ions when they...

Lose or gain electrons from their valence shell Signup and view all the answers

Which type of bond involves the sharing of electrons between atoms?

Covalent bond Signup and view all the answers

What happens when atoms lose electrons and form positively charged ions?

They become cations Signup and view all the answers

What happens when an atom loses an electron?

It becomes positively charged Signup and view all the answers

Which type of bond involves the sharing of valence electrons?

Covalent bond Signup and view all the answers

Why does an atom become negatively charged when it gains an electron?

It completes its valence shell Signup and view all the answers

What type of particle is formed by atoms gaining or losing electrons?

Ion Signup and view all the answers

How is an ionic bond formed?

By transferring electrons between atoms Signup and view all the answers

Which element forms the simplest covalent bond with another atom?

Hydrogen Signup and view all the answers