Question

Fill in the blanks.

i) During a chemical reaction the sum of the ________ of reactants and

products remain unchanged.

ii) Mass of 1 mole of a substance is called its _______.

iii) A chemical formula is also known as a __________.

iv) Ionic compounds are formed between ______ and _______.

v) A pure substance is one which is made up of only one kind of _________


please answer it correctly !!(*^▽^*)​

Answer 1

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1. Dᴜʀɪɴɢ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ᴛʜᴇ sᴜᴍ ᴏғ ᴛʜᴇ MASSES ᴏғ ᴛʜᴇ ʀᴇᴀᴄᴛᴀɴᴛs ᴀɴᴅ ᴘʀᴏᴅᴜᴄᴛs ʀᴇᴍᴀɪɴ ᴜɴᴄʜᴀɴɢᴇᴅ.
2. Mᴀss ᴏғ ᴏɴᴇ ᴍᴏʟᴇ ᴏғ ᴀ sᴜʙsᴛᴀɴᴄᴇ ɪs ᴄᴀʟʟᴇᴅ ɪᴛs MOLAR MASS ᴏғ ᴛʜᴀᴛ sᴜʙsᴛᴀɴᴄᴇ.
3. A ᴄʜᴇᴍɪᴄᴀʟ ғᴏʀᴍᴜʟᴀ ɪs ᴀʟsᴏ ᴋɴᴏᴡɴ ᴀs SYMBOLIC REPRESENTATION.
4. Iᴏɴɪᴄ ᴄᴏᴍᴘᴏᴜɴᴅs ᴀʀᴇ ғᴏʀᴍᴇᴅ ʙᴇᴛᴡᴇᴇɴ METAL ᴀɴᴅ NON - METAL.
5. A ᴘᴜʀᴇ sᴜʙsᴛᴀɴᴄᴇ ɪs ᴏɴᴇ ᴡʜɪᴄʜ ɪs ᴍᴀᴅᴇ ᴜᴘ ᴏғ ᴏɴʟʏ ᴏɴᴇ ᴋɪɴᴅ ᴏғ ATOM.

EXPLAINATION:-

1. According to the law of conservation of mass, matter can neither be created nor destroyed.
2. The molar mass of an element is found on the periodic table, and it is the element's atomic weight in grams/mole (g/mol).
3. A chemical formula can also be written is symbolically.
4. An ionic bond is formed through the transfer of one or more valence electrons, typically from a metal to a non-metal, which produces a cation and an anion that are bound together by an attractive electrostatic force.
5. An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance

Answer 2

1. Masses
2. Molar masses
3. symbolic Representation
4. Metal, non metal
5. Atom

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#Hope it helps...