Recent content by Jigneshbharati

Why is the net charge the same (-3) for phosphate and phosphite ion? PO4-3 and PO3 is also -3. This is nor a homework question. I am 49 and love chemistry and helping my son with his studies. Thank you in advance.

Thank you so much for your answer and expert advice. I really appreciate it.

Thank you for your help.

Thanks. The teacher said -210. I am confused which one is correct. -196 C Or -210 C Or I appreciate your help.

Hi, I you don't mind, would you please explain this in detail: As both gases are liquid the best first estimate is the colder of the two boiling/liquefaction temperatures, which is -196-degC.

Thank you so much.

Thanks. In KS3 book, they have given cooling and heating curve. How should I explain the correct answer so he understands the why? Thank you.

I am not sure why the correct answer is -210 C as per teacher's correction? Thank you in advance.

We got this paper after a month. He is in year 7. The teacher has corrected few of his answers with purple pen and the wrong ones are marked with a red cross. I hope it makes sense.

I only put that because people assume that it is not a genuine doubt. Thank you.

Is teacher wrong for both the questions?

Thanks. The teacher has given the correct answer in/with purple pen. I am so sorry but I don't get why the correct answer is -210 C. I tried but I am still confused.

My son is in year 7. I received a test paper and his answers. Unfortunately, we don't have the correct answer for some questions. I have attached the screenshot. The topic is particle model (year 7). I would appreciate your help. This is not a homework question but I need your expert advice so...

Thank you for your reply. I am glad that it makes sense. I love helping him and I also get chance to learn with him. I am so grateful that this type of Forums exists. Take care. Bye...

Thank you so much. I really appreciate your help. Good night!