1. 2Distnguish between a physical change and a chemical change
2. Differentiate between a mixture and a compound
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Answers
1.ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ-ᴀɴᴏᴛʜᴇʀ ᴡᴀʏ ᴛᴏ ᴛʜɪɴᴋ ᴀʙᴏᴜᴛ ᴛʜɪs ɪs ᴛʜᴀᴛ ᴀ ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ ᴅᴏᴇs ɴᴏᴛ ᴄᴀᴜsᴇ ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴛᴏ ʙᴇᴄᴏᴍᴇ ᴀ ғᴜɴᴅᴀᴍᴇɴᴛᴀʟʟʏ ᴅɪғғᴇʀᴇɴᴛ sᴜʙsᴛᴀɴᴄᴇ ʙᴜᴛ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ ᴄᴀᴜsᴇs ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴛᴏ ᴄʜᴀɴɢᴇ ɪɴᴛᴏ sᴏᴍᴇᴛʜɪɴɢ ᴄʜᴇᴍɪᴄᴀʟʟʏ ɴᴇᴡ
ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs- ᴀʀᴇ ᴀʟsᴏ ᴋɴᴏᴡɴ ᴀs ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs. ᴛʜᴇ “ɪɴɢʀᴇᴅɪᴇɴᴛs” ᴏғ ᴀ ʀᴇᴀᴄᴛɪᴏɴ ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴛʜᴇ ʀᴇᴀᴄᴛᴀɴᴛs, ᴀɴᴅ ᴛʜᴇ ᴇɴᴅ ʀᴇsᴜʟᴛs ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴛʜᴇ ᴘʀᴏᴅᴜᴄᴛs. ᴛʜᴇ ᴄʜᴀɴɢᴇ ғʀᴏᴍ ʀᴇᴀᴄᴛᴀɴᴛs ᴛᴏ ᴘʀᴏᴅᴜᴄᴛs ɪs sɪɢɴɪғɪᴇᴅ ʙʏ ᴀɴ ᴀʀʀᴏᴡ:
ʀᴇᴀᴄᴛᴀɴᴛs → ᴘʀᴏᴅᴜᴄᴛs
2.ɪɴ ᴘɪᴄ
ᴋᴏɴ ʙʜᴜʟᴀ ᴀᴘᴋᴏ
ᴍᴀɪɴ ᴛᴏ ɴʜɪ ʙʜᴜʟɪ
ᴀᴜʀ ʜᴀᴀɴ sᴇᴇ ᴍʏ ʙɪᴏ.....❣️
Answer:
1.
Physical Change:
Physical change is a process in which the material experiences alteration in its physical properties like shape, size, volume, appearance, color, state (i.e. solid, liquid, gas), etc., that, without making any alteration in their molecular composition. These alterations are unstable in; that can be reversed using simple physical methods.
The same element or compound occurs prior, or after the change, i.e. original physical appearance of the object remains unchanged. For instance, melting of wax, dissolving sugar in water, boiling of water, chopping wood, crumpling of paper, etc.
Chemical Change:
Chemical Change is defined as the procedure in which the atoms of one or more substances are reordered or combined to form a new substance. When a substance experiences chemical change, the chemical character of the substance changes and it is converted into a different substance with different chemical configuration. Evolution of energy, the creation of bubbles, and changes in temperature are some signs of chemical change.
Alternately, known as a chemical reaction, where the substances involved are called reactants, and the result of the reaction is known as a product. Energy change is one of the features of a chemical change, because of the development of the new product. Once the chemical alteration takes place, it cannot be overturned. For instance, bleaching a stain, adding vinegar to baking soda, fermenting of grapes, etc.
2.
Mixture:
A mixture is a substance composed of two or more matter that can be separate with the help of physical methods. There are some examples of the mixtures that are present around you like a solution of water and salt, sugar and water, different gases, air in the atmosphere and many more. Below are some other examples of a mixture.
Compound:
A compound is a substance created by when two or more chemical elements are bound together. There are so many examples of a compound that are used on regular basis including sodium chloride (NaCl, a common salt use at every place), sodium chloride (Na₂CO₃, commonly found in manufacturing paper, soap, glass, and photography).
A compound is a substance created by when two or more chemical elements are bound together. There are so many examples of a compound that are used on regular basis including sodium chloride (NaCl, a common salt use at every place), sodium chloride (Na₂CO₃, commonly found in manufacturing paper, soap, glass, and photography). The type of bonds holding together in a compound can vary i.e. covalent bonds and ionic bonds. The elements are present in a fixed ratio whether it is available in any compound. There are some examples of the compound mention below that help to understand you in a good manner.