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Q-1 define relative atomic mass. Q-2 …

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Q-1 define relative atomic mass. Q-2 what is the full form of IUPAC. Q-3 a solid exerts pressure of 20Pa on a surface of 2m^2. Find its weight. Q-4 write the chemical formula of (a) sodium carbonate (b) ammonium chloride. Q-5 why does a needle have a sharp tip. Q-6 calculate the formula unit mass of CaCl2, atomic mass of Ca=10u, Cl =35. 5u. Q-7 convert into mole (a) 12g of oxygen gas (b) 20g of water. Q-8 calculate the molar mass of the following substances (a) Ethyne C2H2 (b) sulphur molecule (c) hydrochloric acid HCL.

Posted by K_Hushii 🍁 2 years, 9 months ago

CBSE > Class 09 > Science

5 answers

Sanket .........✨ 2 years, 9 months ago

Thanks bestie for help ??

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Xoxo .. 2 years, 9 months ago

Aur bhi de do na..like 4 marks vale.. please ????

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K_Hushii 🍁 2 years, 9 months ago

Haaa ?

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Xoxo .. 2 years, 9 months ago

Ye sab exam me ayye the kya?

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Anurag Yadav 2 years, 9 months ago

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