Is there any simple softwares to draw images as below?

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Preparation of Humic acid stock solution?

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Which book do you recommend??

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Can you explain the following graph obtained from UV spectra Lambda 35?? X axis is Wavelength nm and Y axis is absorbance.

It is supposed that we got graphene. However, we have two peaks inverted in near 300 and 200 nm.

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Is there any method or way that can be alternative to freeze drying of organic samples (powders)?

Please, I need any suggestions

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How can the theoretical C/O ratio be calculated?

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Why get I always fluctuations in the range 300-400 nm in UV spectra as shown below?

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Which type of Graphene Oxide should be purchased to prepare graphene?

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Can you help to know the oxidation methods for Graphite to get Graphene Oxide?

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Dirty and clean?

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Who of all the Global Scientific community will help me Prof. Dr. Yoshida make way for TPEOM, MEC ~EMC to return the atmospheric gases to the norma ?

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How to draw the five chelate rings of [Co(EDTA)]- on this picture?

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Can anyone provide me with molecular docking softwares/ websites?

Molecular docking software/ websites?

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How to correctly use the UTE and ZTE pulse sequences in Bruker's ParaVision software?

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Juan Leonardo Sarli

Hello, how are you? Maybe you can use "Inkscape" is like a free version of CorelDraw, have filters, shapes, textures and so, that can help you in design those images.

Alaa El Din Mahmoud

Fine. What about you? Thank you for your recommendation. I will try it and tell you :)

It is good. Please, can you give an example how to draw a conical??

Maxime Harnois

Inkscape for 2D and Blender for 3D pictures.

Blender for animations

For instance: https://www.youtube.com/watch?v=RasemoYzsFA

Great. How can I get this program?

Blender is an open source software. You can visit: https://www.blender.org

You will find many tutorial on internet. If you need help, feel free to contact me!