[vc_section][vc_row][vc_column width=”2/3″][vc_custom_heading text=”Chemical” font_container=”tag:h3|text_align:left”][vc_column_text]A chemical is any substance with a definite chemical composition that is either a pure chemical element or a pure chemical compound. It can be a product caused by the reaction of two or more chemicals involving modifications to atoms or molecules. In drinking water, chemicals are cause for concern because most of them are dangerous to human health.[/vc_column_text][/vc_column][vc_column width=”1/3″][vc_widget_sidebar sidebar_id=”cs-3″ title=”Glossary List”][/vc_column][/vc_row][/vc_section]