Chemical Reaction

The conversion of one or more reactants chemically to form one or more products is known as a chemical reaction. When the reaction gives out energy, it is an exothermic reaction. When the energy is taken in, it is an endothermic reaction. The four basic types of chemical reactions are synthesis, decomposition, single replacement, and double replacement. There are oxidation and reduction reactions where there is gain and loss of oxygen.

Recently Answered Questions Recently Answered Questions

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Why did I have a seizure after drinking an energy drink?

Query: Hi doctor, I had a grand mal seizure two months before after drinking an energy drink. Since then, my sleep has become progressively worse. I am a nurse and worked the last three long days. However, I slept for one hour last night, and I was wide awake. I took the maximum dose of Melissa for the dre...  Read Full »

Dr. Anshul Varshney

Answer: Hi, Welcome to Thanks for writing in, and I understand your concern. For the seizure activity, the cause has to be evaluated. If that was an acute symptomatic seizure following an energy drink, then you might have reacted to some of its content. It is important to assess other ca...  Read Full »

What is the risk of ethanol inhalation?

Query: Hello doctor, I want to know if there is a short-term health risk due to the inhalation of 70 % ethanol and isopropyl alcohol. I do not mean the hand wash, but the pure liquid, which I use for electronic repairing and cleaning. I almost always use an organic vapor mask or gas mask. If I work long...  Read Full »

Dr. Sugandh Garg

Answer: Hello, Welcome to An occasional brief exposure of not more than two minutes, as you mentioned, can be done without a mask. However, it is always recommended to use protection when dealing with poisonous gases, especially when you are working in that environment regularly. For more infor...  Read Full »

What could be the pimple-like marks on the penis without any symptoms?

Query: Hello doctor, I have three pimple-like marks on my penis for over a month now, and it makes me worried and depressed. I only had sex with one girl in my life, and she was clean. I am afraid of genetic warts and do not even want to date if I am contagious. I went to a urologist before these appeared,...  Read Full »

Dr. Samer Samer Juma Ali Altawil

Answer: Hi, Welcome to I have seen the photo (attachment removed to protect patient identity). These pimples are not warts. It seems to be a reaction to something you are using or applying on your penis, like shower gel or soap or anything you use daily. I think it is not related to...  Read Full »

Why did I get tiny black dots on the body after gallbladder surgery?

Query: Hello doctor, Recently, I had acute pancreatitis, which resulted in gallbladder surgery. Two weeks post operation; I have noticed tiny black dots appearing on my body. Now it has spread, some are raised and some are flat. Should I be concerned? What are they? I have attached the picture of my stom...  Read Full »

Dr. Gaurang Gupta

Answer: Hello, Welcome to Your photos (attachment removed to protect patient identity) are a bit blurred and these are tiny small papules. Are they itchy? There are two to three possibilities. I will mention it one by one. First is drug reaction - As you had undergone surgery, you must be taki...  Read Full »

Is drinking nail polish remover dangerous?

Query: Hello doctor, I have a question about the side effects of ingesting a small amount of nail polish remover. Here is the scenario. My girlfriend used the nail polish remover on her hands to take off her polish. Immediately after that, we were making out. So, I kind of sucked her fingers and nails. I ...  Read Full »

Dr. Anshul Varshney

Answer: Hello, Welcome to This amount of ingestion of nail polish removal followed by rinsing is not going to cause any ill effects to you except, a change in taste for a few days and oral ulcerations maximum. I do not find any reason to worry. If you have any further queries please ask me. For...  Read Full »

I have a yellow spot on the gums. What could it be?

Query: Hi doctor, I have a yellow spot on the right side of the gums. I also have a pain in the back tooth. I am taking Ibuprofen and applied Bonjela. But still, I have pain in the tooth. What could it be?  Read Full »

Dr. Muzaffer Hussain Parray

Answer: Hi, Welcome to I have gone through the attachment (attachment removed to protect patient identity). It looks like a traumatic ulcer or chemical burn. The reason can be due to the tissue present between the last two teeth. It is chewed during grinding causing a traumatic ulcer. The oth...  Read Full »

There is a spot of rust in my orthodontic retainer. Can I continue to use it?

Query: Hello doctor, I have had braces for many years. I am almost finished with the treatment and currently use a retainer about once a week. I have just found rust and corrosion in the weld between the steel wires. How serious is this? What should one do? Can the retainer still be used?  Read Full »

Dr. Honey Nandwani

Answer: Hello, Welcome to Orthodontic wires are usually resistant to corrosion and if the wire has corroded, it can release harmful ions inside the oral cavity leading to an allergic reaction and toxicity.  So, I suggest you consult your orthodontist and get evaluated. He will change the corro...  Read Full »

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