Chemistry, asked by vaishali1681, 6 months ago

Explain the change of heat energy in a chemical change.

Answers

Answered by dorinaFernandes

Answer:

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Explanation:

A chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. Because the surroundings is gaining heat from the system, the temperature of the surroundings increases. ... For example, when solid dry ice vaporizes (physical change), carbon dioxide molecules absorb energy.

Answered by ItzmysticalAashna

Answer:

ᴍɪss ᴍᴀsᴛᴇʀᴍɪɴᴅ~❤️

ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs ᴏᴄᴄᴜʀ ᴡʜᴇɴ ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴄᴏᴍʙɪɴᴇs ᴡɪᴛʜ ᴀɴᴏᴛʜᴇʀ ᴛᴏ ғᴏʀᴍ ᴀ ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇ, ᴄᴀʟʟᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ sʏɴᴛʜᴇsɪs ᴏʀ, ᴀʟᴛᴇʀɴᴀᴛɪᴠᴇʟʏ, ᴄʜᴇᴍɪᴄᴀʟ ᴅᴇᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ɪɴᴛᴏ ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ ᴅɪғғᴇʀᴇɴᴛ sᴜʙsᴛᴀɴᴄᴇs. ᴛʜᴇsᴇ ᴘʀᴏᴄᴇssᴇs ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs ᴀɴᴅ, ɪɴ ɢᴇɴᴇʀᴀʟ, ᴀʀᴇ ɴᴏᴛ ʀᴇᴠᴇʀsɪʙʟᴇ ᴇxᴄᴇᴘᴛ ʙʏ ғᴜʀᴛʜᴇʀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs.

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