День: 20 апреля 2021

Halogen

~ vergineghachatryan ~ Оставьте комментарий

A halogen is a chemical element that forms a salt when it reacts with metal. … There are five halogens in the periodic table of chemical elements: fluorine, chlorine, bromine, iodine, and astatine. The halogens are all highly reactive, which means they’re quick to form bonds with other elements.

Chlorine is the best known of the halogen elements. The free element is widely used as a water-purification agent, and it is employed in a number of chemical processes. Table salt, sodium chloride, of course, is one of the most familiar chemical compounds. Fluorides are known chiefly for their addition to public water supplies to prevent tooth decay, but organic fluorides are also used as refrigerants and lubricants. Iodine is most familiar as an antiseptic, and bromine is used chiefly to prepare bromine compounds that are used in flame retardants and as general pesticides. In the past ethylene dibromide was extensively used as an additive in leaded gasoline.

These fire elements release substances that are toxic to humans in the form of toxic fumes but also cause corrosion of metals. Halogen-free plastics are safer, and products from them are particularly convenient to collection and escape routes (public spaces, railway stations, theaters, cinemas, shopping centers, etc.).

English

~ vergineghachatryan ~ Оставьте комментарий

I have participated in many school projects this year but the most recent one was when I went to Բջնի with my dance club.

I had a lot of fun there with my friends, at first it was a pretty long bus ride but when we arrived we changed into our (տարազ) Armenian traditional dance clothes and went down to the people and started dancing, after that we baked some Armenian bread (լավաշ) and we painted eggs since it was Easter. Later we made some tea and ate some sweets before heading to the church to dance for the people of the village.

The people there were very kind and welcoming, they all had great vibes. They let us into their homes and treated us all like family.

After dancing at the church we went back to our place and everyone was pretty tired so some people were still baking լավաշ some were in the kitchen others were dancing, I think the process of baking the Armenian bread is really interesting and I loved watching them do it, I didn’t try it myself because I wasn’t sure I would be able to do it but they basically put the dough on a big pillow thing and then put it down the (թոնիր).

After everyone got their energy back we went up to another church and performed some dances for the people and on our way back a lot of people gathered around us and we all just started dancing again and had a big audience, after a while we were all really tired and it was already late so we changed back to our clothes and walked around the village, we were making jokes and having fun and saw a lot of interesting things and met new awesome people and after all the walking and dancing we were exhausted so we decided to go back to the school and that was pretty much it from the trip.

My overall experience was great I loved learning more about my country and our culture, going to new places and meeting new people, thanks to one of my favorite teachers ընկեր Հայարփի I got to expirence that.

I learned a Lot of things and had a great day with all those lovely people, to the point that I didn’t want to come back home, it felt like i was taking a break from all the negativity in my life and just enjoying the little things in we get because thats all that matters.