WebSep 18, 2024 · A physical change is a change in appearance only. The matter is still the same after the change takes place. Examples of physical change include, cutting paper, melting butter, dissolving salt in water, and breaking glass. A chemical change occurs when matter is changed into one or more different types of matter. WebMay 11, 2024 · Burning of paper is a chemical change because as a result of burning, a new substance ash is formed as a chemical substance. During burning, Carbon reacts with hydrogen and oxygen, turning them into Carbon dioxide and water. These changes are irreversible and ash can not be converted back to the original substance.
7C22C15B-6BF5-47D3-8E60-F2EA60855F90.jpeg - Course Hero
WebQuestion: 1. Which of the following is a chemical change? A) burning natural gas B) melting ice C) hammering gold into foil D) cutting a tomato E) cutting paper 2. On a hot day, the thermometer read 95 °F. What is the temperature in degrees Celsius? A) 77 °C C) 35 B) 113 °C D) 63 °C °C E) 178 °C 3. WebCutting Or Tearing of paper is a physical change because: 1. No new substance is formed, as the atoms of papers remain the same only there size changes. Is cutting up paper a physical change? Answer and Explanation: Answer and Explanation: Cutting paper is an example of physical change, as no new substance is generated during this process. fact town jeans
BRAINLIESTTTT ASAP!!!! 1. Which of the following is a chemical change …
WebAug 13, 2024 · The reaction between zinc and sulfur can be depicted in something called a chemical equation. In words, we could write the reaction as: (10.4.1) zinc + sulfur → zinc sulfide. A more convenient way to express a chemical reaction is to use the symbols and formulas of the substances involved: (10.4.2) Zn + S → ZnS. WebMay 21, 2024 · Burning of paper is (a) chemical change (b) physical change (c) reversible (d) all of these. Answer. Answer: (a) chemical change. Question 14. Force can cause change in the (a) size ... Making an aeroplane by cutting out of a paper is an irreversible change. Answer. Answer: True. Question 15. Chemical changes are usually reversible. Answer ... WebChemistry. Chemistry questions and answers. 1. Which of the following is a chemical change? A) burning natural gas B) melting ice C) hammering gold into foil D) cutting a tomato E) cutting paper 2. On a hot day, the thermometer read 95 °F. What is the temperature in degrees Celsius? B) 113 °C A) 77 °C E) 178 °C C) 35 °C D) 63 °C. fact township high school