Which of the following is a chemical change? A. Melting ice B. Breaking a glass C. Burning wood D. Crushing a can 相关知识点: 试题来源: 解析 C。燃烧木材是化学变化。选项 A 冰融化是物理变化;选项 B 打破玻璃是物理变化;选项 D 压扁罐子是物理变化。
结果1 题目 ( A )6. Which of the following is a chemical change(化学变化)? A. Milk turns into yogurt. B. Water drips through stones. C. Water turns into ice. D. Candles turn to wax. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
Question: Which of the following is a chemical change? A) Melting Iron B) Boiling alcohol C) Evaporating Water D) Burning Coal Changes in Matter: Changes in matter can be classified as either physical or chemical change. Physical changes are those ...
-Analysis: Burning LPG involves a chemical reaction where LPG reacts with oxygen to produce carbon dioxide and water. New substances are formed as a result of this reaction. -Conclusion: This is achemical change. 3.Heating of an Iron Rod to Red Hot: ...
Chemical Change: Changes in matter may be classified as either physical change. When there are no changes in the chemical composition that occur the change is considered a physical change. When there is an accompanying change in composition...
【题文】 Carbon is a chemical element which is present in organic compounds that make us organisms, plants as well as fossil. It is a vital component of the greenhouse gas CO2, the highest percentage of the global warming gas in the atmosphere. These Green House Gases (GIIGs) along with...
1__ we know, in a chemical change, energy cannot be created, ___.A.Which, nor can it be destroyedB.As, neither it can be destroyedC.As, neither is it able to be destroyedD.What, nor is destroyed 2___ weknow,inachemicalchange,energycannotbecreated, ___.A.Which, nor can ...
Which of the following is an example of a chemical change? (a) Water boiling (b) Ice melting (c) Rusting of a nail (d) Alcohol evaporating (e) Iodine vaporizing. Physical and Chemical Changes: All changes...
Most resort to chemical processing to change the texture look and feel of the hair only this just makes the hair worst. Our formula will give kinky hair the sebum it is lacking and in the process the hair will begin to act, look and feel like another hair texture that has abundant ...
we know, in a chemical change, energy cannot be created, . A. Which, nor can it be destroyed B.As, neither it can be destroyed C.As, neither is it able to be destroyed D. What, nor is destroyed