Correct Answer: True<\/strong><\/p>\n\n\n\n Explanation:<\/strong><\/p>\n\n\n\n Dissolving a salt in water is considered a physical change<\/strong>, while adding an acid to a substance often results in a chemical change<\/strong>. This distinction lies in whether new substances are formed and if chemical bonds are broken or formed.<\/p>\n\n\n\n When salt (such as sodium chloride)<\/strong> is dissolved in water, the process involves the dissociation of the salt into its ions\u2014sodium ions (Na\u207a)<\/strong> and chloride ions (Cl\u207b)<\/strong>. These ions become surrounded by water molecules, but no new substances are formed<\/strong>. The salt can be recovered through evaporation<\/strong>, which confirms that no chemical transformation has occurred. The identities of sodium and chloride ions remain unchanged. This makes dissolving salt a physical change<\/strong> because it involves a change in the state or appearance of a substance without altering its chemical composition.<\/p>\n\n\n\n On the other hand, adding an acid to a substance<\/strong> usually causes a chemical reaction<\/strong>. For example, adding hydrochloric acid (HCl) to baking soda (sodium bicarbonate, NaHCO\u2083) produces carbon dioxide gas (CO\u2082)<\/strong>, water (H\u2082O), and sodium chloride (NaCl). In this case, new substances are formed<\/strong>, and chemical bonds are both broken and formed during the reaction. This is clear evidence of a chemical change<\/strong>. The original substances are no longer present in their original form.<\/p>\n\n\n\n Another example is when acid is added to metals like zinc. It produces hydrogen gas and a salt. The visible bubbling and change in substance composition are typical signs of a chemical change.<\/p>\n\n\n\n In summary, physical changes<\/strong> like dissolving salt do not alter the chemical makeup of the substance, and the process can often be reversed. Chemical changes<\/strong>, such as reactions with acids, result in the formation of entirely new substances and often cannot be reversed by simple physical means.<\/p>\n\n\n\n Dissolving a salt in water is considered a physical change, while adding an acid to a substance is a chemical change. Please give me the correct answer, please. The Correct Answer and Explanation is: Correct Answer: True Explanation: Dissolving a salt in water is considered a physical change, while adding an acid to a substance […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-237188","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/237188","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=237188"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/237188\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=237188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=237188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=237188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-672.jpeg\")
<\/figure>\n","protected":false},"excerpt":{"rendered":"