![Turtlelover05](/avatars/45431.jpg)
Turtlelover05
10.01.2020 •
Chemistry
Which of the following statements is not true regarding physical properties and changes?
a. physical changes include evaporating, boiling, and dissolving.
b. physical changes can change compounds into elements.
c. physical properties can be observed without any change in the substance's identity.
d. a series of physical changes, such as filtration and heating, can be used to separate substances with different physical properties.
Solved
Show answers
More tips
- H Health and Medicine 5 Simple Steps to Quit Smoking for Good...
- H Health and Medicine Coughing: Causes, Types, and Treatment Methods...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
Answers on questions: Chemistry
- C Chemistry g During a phase change, (large amounts/no/small amounts) of energy are being transferred into or out of the substance, even though the temperature of the substance is (decreasing/increasing/constant)....
- M Mathematics What is the answer for x/1.2=-7...
- E English Read the following passage from william wordsworth s the solitary reaper, then answer the question. a voice so thrilling ne er was heard in spring-time from the cuckoo-bird, breaking...
- M Mathematics Amanda and Ameilio are sharing 72 candies in the ratio of 5:7 respectively. How many candies will Ameilia receive...
Ответ:
Option (B) is the correct answer.
Explanation:
Physical properties and changes are defined as the property or changes that does not cause any change in the chemical composition of a substance.
For example, cutting a piece of sodium with knife is a physical change.
Whereas boiling point, density, melting point etc are all physical changes.
On the other hand, changes that bring change in chemical composition of a substance are known as chemical changes.
For example, reactivity, toxicity etc are all chemical changes.
Hence, we can conclude that the statement physical changes can change compounds into elements, is not true regarding physical properties and changes.
Ответ: