{"id":46744,"date":"2025-07-02T08:19:51","date_gmt":"2025-07-02T08:19:51","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=46744"},"modified":"2025-07-02T08:19:52","modified_gmt":"2025-07-02T08:19:52","slug":"is-it-chemical-change-or-physical-change","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/is-it-chemical-change-or-physical-change\/","title":{"rendered":"Is it chemical change or physical change"},"content":{"rendered":"\n<p>Is it chemical change or physical change? give reasons. a a glass bottle breaking b butter and sugar being made into toffee c cotton being woven to make sheets d coal burning in air<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here are the explanations for each case:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">a) A glass bottle breaking: <strong>Physical Change<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reason:<\/strong> When a glass bottle breaks, it undergoes a change in its shape and size, but its chemical composition remains the same. The breaking is simply a physical alteration, not a chemical reaction. No new substances are formed, and no bonds are broken or created at the molecular level.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">b) Butter and sugar being made into toffee: <strong>Chemical Change<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reason:<\/strong> When butter and sugar are heated together to make toffee, they undergo a chemical transformation. The heat causes the sugar to caramelize and change its molecular structure, forming a new substance (toffee). This process involves a chemical reaction, as new substances are created, and energy is either absorbed or released in the form of heat.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">c) Cotton being woven to make sheets: <strong>Physical Change<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reason:<\/strong> The process of weaving cotton into sheets does not alter the chemical structure of the cotton fibers. The fibers simply change shape and arrangement. This is a mechanical process, not a chemical one, since no new substance is formed during the weaving.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">d) Coal burning in air: <strong>Chemical Change<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reason:<\/strong> When coal burns in air, it reacts chemically with oxygen to form new substances, such as carbon dioxide and water vapor. This is an example of combustion, a chemical reaction in which the composition of the coal changes, and new compounds are produced. The burning of coal involves a rearrangement of atoms and energy release in the form of heat and light.<\/li>\n<\/ul>\n\n\n\n<p>In summary:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Physical changes do not result in the formation of new substances, whereas chemical changes do. The key indicator of a chemical change is the formation of new substances with different properties from the original ones.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-181.jpeg\" alt=\"\" class=\"wp-image-46756\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-181.jpeg 1024w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-181-300x300.jpeg 300w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-181-150x150.jpeg 150w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-181-768x768.jpeg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Is it chemical change or physical change? give reasons. a a glass bottle breaking b butter and sugar being made into toffee c cotton being woven to make sheets d coal burning in air The Correct Answer and Explanation is: Here are the explanations for each case: a) A glass bottle breaking: Physical Change b) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46744","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/46744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=46744"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/46744\/revisions"}],"predecessor-version":[{"id":46757,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/46744\/revisions\/46757"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=46744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=46744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=46744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}