Acids, Alkalis, and pH Levels

Acids are sour-tasting, corrode metals, and turn litmus paper red.

Universal indicators change color depending on the acidity or alkalinity of the solution.

Hazard signs warn people about potential dangers or hazards.

<p>Litmus paper turns red in the presence of an acid and blue in the presence of an alkali.</p> Signup and view all the answers

<p>Examples of alkalis include soap and baking soda.</p> Signup and view all the answers

<p>The color change indicates the pH level of the solution, whether it is acidic, neutral, or alkaline.</p> Signup and view all the answers

<p>Litmus paper is used to quickly and easily determine the acidity or alkalinity of a solution.</p> Signup and view all the answers

<p>Examples of acids include lemon juice and vinegar.</p> Signup and view all the answers

<p>Hazard signs use symbols and colors to convey important information.</p> Signup and view all the answers