Chemistry

2890 topics in this forum

1. is erasable ink jet pen safe to use?

   By kenny1999, September 25, 2023
   • 17 replies
   • 2.6k views
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   • mistermack
   • September 28, 2023

2. My chalk idea

   By grayson, September 11, 2023
   • 0 replies
   • 586 views
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   • grayson
   • September 11, 2023

3. How Do you define "Change of environment" In a math equation

   By grayson, August 20, 2023
   • 3 replies
   • 907 views
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   • Genady
   • August 20, 2023

4. Real light saber

   By grayson, August 19, 2023
   • 0 replies
   • 473 views
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   • grayson
   • August 19, 2023

5. The big bad book of military explosives

   By Steve81, August 13, 2023
   • 4 replies
   • 688 views
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   • Steve81
   • August 13, 2023

6. Dehydrated Water 1 2

   By Photon Guy, July 13, 2023
   • 30 replies
   • 3.6k views
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   • mistermack
   • July 19, 2023

7. Mnemonics for the Periodic Table

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

8. Can solid foods have pH values?

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

9. sunlight fades colors?

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

10. Could chemicals expire?

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

11. What degrades in solar cells ?

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

12. A question about gunpowder

    By Ring0kp, April 4, 2023
    • 21 replies
    • 2.1k views
    • 
    • Ring0kp
    • May 2, 2023

13. Laws of definite and multiple proportions

    By Dhamnekar Win,odd, April 23, 2023
    • 4 replies
    • 1.2k views
    • 
    • Dhamnekar Win,odd
    • April 23, 2023

14. calcium acetate layer on evaporation

    By observer1, February 23, 2023
    • 14 replies
    • 1.9k views
    • 
    • exchemist
    • April 16, 2023

15. Doubt silica gel 1 2

    By gamer87, March 30, 2023
    • 43 replies
    • 4.2k views
    • 
    • Phi for All
    • April 12, 2023

16. Is plastic mostly inert to most substances?

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

17. Whole and not whole numbers...

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

18. which displacement reaction?

    By observer1, January 22, 2023
    • 16 replies
    • 1.4k views
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    • observer1
    • January 24, 2023

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

    By observer1, January 17, 2023
    • 11 replies
    • 3.9k views
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    • studiot
    • January 21, 2023

20. Reaction between Ca(CH3COO) and NaHCO3

    By observer1, January 19, 2023
    • 13 replies
    • 1.3k views
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    • chenbeier
    • January 20, 2023

21. Glow-in-the-dark workings...

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

22. How to separate a container containing NaHCO3 and CaCO3

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

23. How much Kj per mole is a lot?

    By observer1, January 14, 2023
    • 10 replies
    • 1.1k views
    • 
    • observer1
    • January 15, 2023

24. Platinum Catalyst Hand Warmer questions

    By BrandoAZ, June 15, 2010
    • 17 replies
    • 40.7k views
    • 
    • andygold
    • December 10, 2022

25. Decarbonising Fizzy Drinks

    By Erina, December 3, 2022
    • 13 replies
    • 1.6k views
    • 
    • exchemist
    • December 4, 2022