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Нужна ваша помощь

Last post by Anka « Fri Jul 01, 2022 1:27 am

by Anka » Fri Jul 01, 2022 1:27 am

0 Replies

20 Views

Last post by Anka
Fri Jul 01, 2022 1:27 am
Please help!

Last post by ChenBeier « Thu Jun 30, 2022 8:05 am
Replies: 1
by fekil » Thu Jun 30, 2022 1:35 am

1 Replies

18 Views

Last post by ChenBeier
Thu Jun 30, 2022 8:05 am
salt

Last post by ChenBeier « Tue Jun 28, 2022 2:29 pm
Replies: 1
by tomlib » Tue Jun 28, 2022 1:31 pm

1 Replies

18 Views

Last post by ChenBeier
Tue Jun 28, 2022 2:29 pm
How to calculate Cp of High entropy ceramics composites

Last post by Faisal Nazeer « Mon Jun 27, 2022 8:59 pm
Replies: 6
by Faisal Nazeer » Sun Jun 26, 2022 9:40 pm

6 Replies

36 Views

Last post by Faisal Nazeer
Mon Jun 27, 2022 8:59 pm
Chemical formula and material nameفرمول شیمیایی و نام مواد

Last post by ChenBeier « Sat Jun 25, 2022 9:28 am
Replies: 1
by Leily » Sat Jun 25, 2022 4:59 am

1 Replies

35 Views

Last post by ChenBeier
Sat Jun 25, 2022 9:28 am
I need help with finding molar ratio

Last post by ndgkhang « Wed Jun 22, 2022 4:54 pm
Replies: 8
by ndgkhang » Mon Jun 20, 2022 10:39 am

8 Replies

108 Views

Last post by ndgkhang
Wed Jun 22, 2022 4:54 pm
Wastewater treatment

Last post by ChenBeier « Wed Jun 22, 2022 1:24 am
Replies: 1
by Engr Azam » Wed Jun 22, 2022 12:03 am

1 Replies

27 Views

Last post by ChenBeier
Wed Jun 22, 2022 1:24 am
Iron

Last post by ChenBeier « Mon Jun 20, 2022 6:56 am
Replies: 1
by tomlib » Mon Jun 20, 2022 6:47 am

1 Replies

30 Views

Last post by ChenBeier
Mon Jun 20, 2022 6:56 am
I need help for this reaction

Last post by ChenBeier « Fri Jun 17, 2022 8:51 am
Replies: 1
by radkotadic » Fri Jun 17, 2022 6:21 am

1 Replies

83 Views

Last post by ChenBeier
Fri Jun 17, 2022 8:51 am
PH

Last post by lidiane « Thu Jun 16, 2022 11:17 am
Replies: 6
by lidiane » Thu Jun 16, 2022 5:23 am

6 Replies

87 Views

Last post by lidiane
Thu Jun 16, 2022 11:17 am
ANYONE CAN TELL HOW TO EXTRACT KNO3 FROM SOIL?

Last post by lifecanbe « Fri Jun 10, 2022 2:34 pm
Replies: 2
by lifecanbe » Fri Jun 10, 2022 2:18 pm

2 Replies

101 Views

Last post by lifecanbe
Fri Jun 10, 2022 2:34 pm
need some help with these questions

Last post by ChenBeier « Thu Jun 09, 2022 12:33 pm
Replies: 1
by eng » Thu Jun 09, 2022 11:24 am

1 Replies

82 Views

Last post by ChenBeier
Thu Jun 09, 2022 12:33 pm
Water and Potassium chloride

Last post by ChenBeier « Tue Jun 07, 2022 2:28 pm
Replies: 3
by IACMar121002 » Tue Jun 07, 2022 6:11 am

3 Replies

131 Views

Last post by ChenBeier
Tue Jun 07, 2022 2:28 pm
Isolation of Molybdenum Metal from MoO3

Last post by ChenBeier « Tue Jun 07, 2022 5:57 am
Replies: 1
by Noblenaga » Mon Jun 06, 2022 9:45 pm

1 Replies

72 Views

Last post by ChenBeier
Tue Jun 07, 2022 5:57 am
Dióxido de Cloro

Last post by fbitan22 « Wed Jun 01, 2022 11:51 am
Replies: 4
by fbitan22 » Wed Jun 01, 2022 7:02 am

4 Replies

170 Views

Last post by fbitan22
Wed Jun 01, 2022 11:51 am
organic chemistry

Last post by ChenBeier « Mon May 30, 2022 11:06 pm
Replies: 3
by lidiane » Sun May 29, 2022 5:21 pm

3 Replies

192 Views

Last post by ChenBeier
Mon May 30, 2022 11:06 pm
Pyridine michael-like addition on nitrogen? (us patent)

Last post by elimination « Mon May 30, 2022 2:16 am
Replies: 4
by elimination » Sun May 29, 2022 11:50 am

4 Replies

202 Views

Last post by elimination
Mon May 30, 2022 2:16 am
How is Ethanol manufactured from Hexane?

Last post by ChenBeier « Sun May 29, 2022 3:10 am
Replies: 1
by Mags88 » Sun May 29, 2022 2:39 am

1 Replies

171 Views

Last post by ChenBeier
Sun May 29, 2022 3:10 am
Solubility product constant

Last post by alexshokz « Fri May 27, 2022 4:21 am
Replies: 4
by Dhamnekar Winod » Wed May 25, 2022 9:43 pm

4 Replies

1504 Views

Last post by alexshokz
Fri May 27, 2022 4:21 am
What is your favorite Periodic Table of Elements?

Last post by ChenBeier « Mon May 23, 2022 12:35 pm
Replies: 5
by JC_Atoms » Fri May 20, 2022 4:12 pm

5 Replies

4059 Views

Last post by ChenBeier
Mon May 23, 2022 12:35 pm
Is writing a book difficult?

Last post by hazelaudrin « Mon May 23, 2022 7:28 am

by hazelaudrin » Mon May 23, 2022 7:28 am

0 Replies

2772 Views

Last post by hazelaudrin
Mon May 23, 2022 7:28 am
Calorimetry

Last post by ChenBeier « Mon May 23, 2022 2:06 am
Replies: 3
by risa » Mon May 23, 2022 12:58 am

3 Replies

1851 Views

Last post by ChenBeier
Mon May 23, 2022 2:06 am
EXTENDED PERIODIC TABLE/the electron multiverse

Last post by ChenBeier « Sun May 22, 2022 2:39 am
Replies: 2
by sunshaker » Thu Feb 07, 2013 2:04 pm

2 Replies

5548 Views

Last post by ChenBeier
Sun May 22, 2022 2:39 am
Entropy of the universe

Last post by RedAmid « Sat May 14, 2022 5:22 am
Replies: 4
by Axel » Tue Apr 19, 2022 2:54 am

4 Replies

12607 Views

Last post by RedAmid
Sat May 14, 2022 5:22 am
Need help with a basic oxysalt

Last post by ChenBeier « Fri May 13, 2022 4:30 am
Replies: 1
by Ecanu » Thu May 12, 2022 6:56 pm

1 Replies

6869 Views

Last post by ChenBeier
Fri May 13, 2022 4:30 am
SOS with equilibrium constant when Volume changed

Last post by ChenBeier « Thu May 12, 2022 5:18 am
Replies: 1
by johnnysuomi » Thu May 12, 2022 4:13 am

1 Replies

6859 Views

Last post by ChenBeier
Thu May 12, 2022 5:18 am
Need your help with Volume & PH of solutions

Last post by ChenBeier « Thu May 12, 2022 4:51 am
Replies: 1
by johnnysuomi » Thu May 12, 2022 4:17 am

1 Replies

6915 Views

Last post by ChenBeier
Thu May 12, 2022 4:51 am
stoichiometry

Last post by ChenBeier « Wed May 11, 2022 11:27 pm
Replies: 1
by alvaromiro » Wed May 11, 2022 7:12 pm

1 Replies

6856 Views

Last post by ChenBeier
Wed May 11, 2022 11:27 pm
Product synthesis

Last post by ChenBeier « Mon May 09, 2022 12:35 pm
Replies: 3
by chemanon » Mon May 09, 2022 11:26 am

3 Replies

7942 Views

Last post by ChenBeier
Mon May 09, 2022 12:35 pm
Standard Free energy of hydration

Last post by César Vásquez « Mon May 09, 2022 12:17 pm

by César Vásquez » Mon May 09, 2022 12:17 pm

0 Replies

11556 Views

Last post by César Vásquez
Mon May 09, 2022 12:17 pm
Electrolysis

Last post by ChenBeier « Sun May 08, 2022 7:32 am
Replies: 5
by Neon » Fri May 06, 2022 5:52 am

5 Replies

8574 Views

Last post by ChenBeier
Sun May 08, 2022 7:32 am
Normality question

Last post by ChenBeier « Sat May 07, 2022 1:47 am
Replies: 3
by Dhamnekar Winod » Fri May 06, 2022 4:36 am

3 Replies

8152 Views

Last post by ChenBeier
Sat May 07, 2022 1:47 am
Copper nitrate from copper sulfate & calcium nitrate

Last post by O'Regan3 « Tue May 03, 2022 4:07 am
Replies: 7
by O'Regan3 » Tue May 03, 2022 1:52 am

7 Replies

9607 Views

Last post by O'Regan3
Tue May 03, 2022 4:07 am
C5H8 combustion

Last post by Viertelstein « Tue May 03, 2022 2:09 am
Replies: 7
by Viertelstein » Sat Apr 02, 2022 7:57 am

7 Replies

8796 Views

Last post by Viertelstein
Tue May 03, 2022 2:09 am
How to make singlet oxygen in vitro

Last post by ChenBeier « Fri Apr 29, 2022 12:16 am
Replies: 1
by undyne » Thu Apr 28, 2022 9:08 pm

1 Replies

6047 Views

Last post by ChenBeier
Fri Apr 29, 2022 12:16 am
influence of HCl on the aqueous solution of H2S

Last post by spps « Thu Apr 28, 2022 2:50 am
Replies: 18
by spps » Tue Apr 26, 2022 7:28 pm
1

2
18 Replies

14810 Views

Last post by spps
Thu Apr 28, 2022 2:50 am
Is there a solvent to dissolve nickel but not brass?

Last post by ChenBeier « Wed Apr 27, 2022 1:40 pm
Replies: 1
by JustAskin » Wed Apr 27, 2022 1:21 pm

1 Replies

6044 Views

Last post by ChenBeier
Wed Apr 27, 2022 1:40 pm
Redox balancing

Last post by chiraldude « Mon Apr 25, 2022 3:26 am
Replies: 4
by chiraldude » Mon Apr 25, 2022 1:25 am

4 Replies

6857 Views

Last post by chiraldude
Mon Apr 25, 2022 3:26 am
Mixture of gasses and Law

Last post by ChenBeier « Sat Apr 23, 2022 3:08 am
Replies: 1
by Niñafaith » Fri Apr 22, 2022 7:39 pm

1 Replies

6151 Views

Last post by ChenBeier
Sat Apr 23, 2022 3:08 am
Stoichiometry - calculation problem

Last post by ned_yas « Wed Apr 20, 2022 12:27 pm
Replies: 6
by ned_yas » Wed Apr 20, 2022 10:35 am

6 Replies

7542 Views

Last post by ned_yas
Wed Apr 20, 2022 12:27 pm
Thermochemistry Help

Last post by MP206 « Tue Apr 19, 2022 3:59 pm
Replies: 2
by MP206 » Tue Apr 19, 2022 10:31 am

2 Replies

6244 Views

Last post by MP206
Tue Apr 19, 2022 3:59 pm
Balanceamento da equação

Last post by ChenBeier « Tue Apr 19, 2022 8:08 am
Replies: 1
by Carla maina » Tue Apr 19, 2022 6:38 am

1 Replies

5973 Views

Last post by ChenBeier
Tue Apr 19, 2022 8:08 am
Balance the Reaction

Last post by ChenBeier « Mon Apr 18, 2022 12:12 pm
Replies: 5
by Abuzar Shahid » Sun Apr 17, 2022 10:32 pm

5 Replies

7539 Views

Last post by ChenBeier
Mon Apr 18, 2022 12:12 pm
Determine o Nox

Last post by lidiane « Sun Apr 17, 2022 10:31 am
Replies: 8
by lidiane » Sat Apr 16, 2022 7:49 am

8 Replies

8341 Views

Last post by lidiane
Sun Apr 17, 2022 10:31 am
Balanceamento por oxirredução

Last post by lidiane « Sat Apr 16, 2022 1:15 pm
Replies: 5
by lidiane » Fri Apr 15, 2022 2:32 pm

5 Replies

7462 Views

Last post by lidiane
Sat Apr 16, 2022 1:15 pm
Explanation required for 'AmmoniaConcentration' package in 'R'

Last post by Dhamnekar Winod « Sat Apr 16, 2022 5:24 am

by Dhamnekar Winod » Sat Apr 16, 2022 5:24 am

0 Replies

12150 Views

Last post by Dhamnekar Winod
Sat Apr 16, 2022 5:24 am
Mineral Ash

Last post by ChenBeier « Thu Apr 14, 2022 10:14 am
Replies: 1
by z a b » Thu Apr 14, 2022 7:01 am

1 Replies

6161 Views

Last post by ChenBeier
Thu Apr 14, 2022 10:14 am
Stoichiometry

Last post by ChenBeier « Mon Apr 11, 2022 10:39 pm
Replies: 1
by brwhite » Mon Apr 11, 2022 7:30 pm

1 Replies

6162 Views

Last post by ChenBeier
Mon Apr 11, 2022 10:39 pm
HELLO I NEED HELP ASAP

Last post by ChenBeier « Sat Apr 09, 2022 1:48 am
Replies: 1
by lalalal19721304 » Fri Apr 08, 2022 5:01 pm

1 Replies

6318 Views

Last post by ChenBeier
Sat Apr 09, 2022 1:48 am
Chemistry packages in 'R'

Last post by Dhamnekar Winod « Fri Apr 08, 2022 9:21 am

by Dhamnekar Winod » Fri Apr 08, 2022 9:21 am

0 Replies

12164 Views

Last post by Dhamnekar Winod
Fri Apr 08, 2022 9:21 am

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