Science & Technology

A chemical bond formed by the transfer of electrons between atoms is called a(n)?

A chemical bond formed by the sharing of electron pairs between atoms is called a(n)?

Common salt (NaCl) is an example of a compound with which type of bond?

Within a water (H — ‚‚O) molecule, the atoms are held together by which type of bond?

The weak attractive force between water molecules, contributing to water's unique properties, is called a(n)?

A reaction in which two or more substances combine to form a single product is called a?

A reaction in which a single compound breaks down into two or more simpler substances is called a?

A reaction where a more reactive element displaces a less reactive one from its compound is called a?

A reaction between an acid and a base, producing salt and water, is called a?

A reaction in which heat is released is called an?

A reaction in which heat is absorbed is called an?

A substance that speeds up a chemical reaction without itself being consumed is called a?

The pH scale generally ranges from?

A pH value of exactly 7 indicates a solution that is?

A pH value below 7 indicates a solution that is?

A pH value above 7 indicates a solution that is?

Litmus paper turns which color in an acidic solution?

Litmus paper turns which color in a basic (alkaline) solution?

Which of the following is a strong acid?

Which of the following is a weak acid commonly found in vinegar?

A solution containing the maximum amount of dissolved solute at a given temperature is called a?

The process of separating a solid-liquid mixture by evaporating and then re-condensing the liquid is called?

The process of separating insoluble solid particles from a liquid using a porous medium is called?

Which technique separates the components of a mixture based on their differing rates of movement through a medium?

Rusting of iron is an example of which type of chemical reaction?