Chemistry

2885 topics in this forum

1. Mnemonics for the Periodic Table

   By sethoflagos, July 13, 2023
   • 2 replies
   • 790 views
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   • sethoflagos
   • July 13, 2023

2. Can solid foods have pH values?

   By Alfred001, July 12, 2023
   • 6 replies
   • 729 views
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   • iNow
   • July 13, 2023

3. sunlight fades colors?

   By kenny1999, July 12, 2023
   • 3 replies
   • 438 views
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   • Externet
   • July 12, 2023

4. Could chemicals expire?

   By kenny1999, July 11, 2023
   • 3 replies
   • 633 views
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   • Endy0816
   • July 11, 2023

5. What degrades in solar cells ?

   By Externet, June 7, 2023
   • 1 reply
   • 545 views
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   • npts2020
   • June 11, 2023

6. A question about gunpowder

   By Ring0kp, April 4, 2023
   • 21 replies
   • 1.8k views
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   • Ring0kp
   • May 2, 2023

7. Laws of definite and multiple proportions

   By Dhamnekar Win,odd, April 23, 2023
   • 4 replies
   • 978 views
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   • Dhamnekar Win,odd
   • April 23, 2023

8. calcium acetate layer on evaporation

   By observer1, February 23, 2023
   • 14 replies
   • 1.7k views
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   • exchemist
   • April 16, 2023

9. Doubt silica gel 1 2

   By gamer87, March 30, 2023
   • 43 replies
   • 3.7k views
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   • Phi for All
   • April 12, 2023

10. Is plastic mostly inert to most substances?

    By kenny1999, March 22, 2023
    • 4 replies
    • 759 views
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    • npts2020
    • March 24, 2023

11. Whole and not whole numbers...

    By Externet, February 8, 2023
    • 2 replies
    • 701 views
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    • studiot
    • February 8, 2023

12. which displacement reaction?

    By observer1, January 22, 2023
    • 16 replies
    • 1.2k views
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    • observer1
    • January 24, 2023

13. does a reaction occur when CaCO3 and NaHCO3 are added?

    By observer1, January 17, 2023
    • 11 replies
    • 3k views
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    • studiot
    • January 21, 2023

14. Reaction between Ca(CH3COO) and NaHCO3

    By observer1, January 19, 2023
    • 13 replies
    • 1.1k views
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    • chenbeier
    • January 20, 2023

15. Glow-in-the-dark workings...

    By Externet, January 17, 2023
    • 0 replies
    • 411 views
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    • Externet
    • January 17, 2023

16. How to separate a container containing NaHCO3 and CaCO3

    By observer1, January 17, 2023
    • 10 replies
    • 817 views
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    • exchemist
    • January 17, 2023

17. How much Kj per mole is a lot?

    By observer1, January 14, 2023
    • 10 replies
    • 934 views
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    • observer1
    • January 15, 2023

18. Platinum Catalyst Hand Warmer questions

    By BrandoAZ, June 15, 2010
    • 17 replies
    • 39.6k views
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    • andygold
    • December 10, 2022

19. Decarbonising Fizzy Drinks

    By Erina, December 3, 2022
    • 13 replies
    • 1.4k views
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    • exchemist
    • December 4, 2022

20. Please, help with question

    By RomanRodinskiy, November 24, 2022
    • 8 replies
    • 1.3k views
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    • studiot
    • November 24, 2022

21. Calcium chloride in DIY dehumidifier - safety ?

    By SentinelAeon, November 21, 2022
    • 5 replies
    • 2.6k views
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    • chenbeier
    • November 23, 2022

22. Why cooking oil runs faster when heated?

    By kenny1999, November 5, 2022
    • 3 replies
    • 984 views
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    • Sensei
    • November 5, 2022

23. gallium

    By IANNG110402, October 27, 2022
    • 6 replies
    • 1k views
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    • chenbeier
    • October 29, 2022

24. The meaning of discharge, and gradient in this context

    By noha, September 28, 2022
    • 2 replies
    • 1.1k views
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    • NTuft
    • October 2, 2022

25. how hard do you need to hit nitroglycerin to ignite it

    By hellohey, September 16, 2022
    • 5 replies
    • 1.1k views
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    • exchemist
    • September 16, 2022