Web) Which substance can be decomposed by chemical means ? ( 1 ) tungsten ( 2 ) krypton ( 3 ) antimony ( 4 ) methane. 5 . ) Which two substances can not be broken down by chemical change ? WebBecause these percentages can vary, bronze is classified as. answer choices . a compound. an element. a mixture. a substance. Tags: Question 5 . SURVEY . 60 seconds . Q. Which substance can be decomposed by chemical means? answer choices ... krypton. methane. Tags: Question 6 . SURVEY . 60 seconds . Q. Which is a mixture of …
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http://www.kentchemistry.com/RegentsExams/regents_jun_2009.htm WebExpert Answers: Krypton is an element so it is the simplest form in which it can exist. Therefore it cannot be broken down or decomposed by chemical methods. can i use xbox game bar to record desktop
1.2: Classification of Matter - Chemistry LibreTexts
WebElements are those pure substances that cannot be decomposed by ordinary chemical means such as heating, electrolysis, or reaction. Gold, silver, and oxygen are examples of elements. Compounds are pure substances formed by the combination of elements; they can be decomposed by ordinary chemical means.Baking soda is a compound; it … Web6.) Which substance can not be decomposed by ordinary chemical means? (1) methane (2) ethanol (3) mercury (4) ammonia 7.) Two substances, A and Z, are to be identified. Substance A can not be broken down by a chemical change. Substance Z can be broken down by a chemical change. What can be concluded about these substances? (1) Both … WebB Compounds contain two elements only C Compounds can be decomposed by chemical means D Compounds can be decomposed by physical means. 20 All of the following statements about mixtures are true except. A They can be separated by differences in physical properties. five star holidays spain