Question

this question for me want faster please anyone answer this question please my mum is asking fastly please mummy beat me you want to thanks School till the Council I will give to chocolates chocolates at all I will not give and chocolates so sorry I cannot do anything to I will like you I will thank you are you are also I will follow this is ok for you don't ask any things I do like this I can't do anything so sorry please ​

Answer 1

Answer:

1. acids react with metals so we should not store acidic food in metal containers

2.it burns with a pop sound due to release of hydrogen gas

5.chlorine acts as a disinfectant

6. silver tarnishes due to the presence of hydrogen sulfide in air

7.copper becomes green colour due to reaction with moist air

Answer 2

Brain drill:Gold and silver are used in making jewellery since ages. ... Gold doesn't tarnish and doesn't react with air as other metals like iron do. Furthermore, gold is extremely malleable and ductile as a result of which it can be converted into alloys to make minute designs which further increases its pride.

Explanation:

1)Acids react with metal by dissolving it. Over time, acidic foods will react with metal containers or cooking vessels, even weak acids. ... However, there will be a noticeable effect on the flavor and color of the food

2)When a matchstick is brought near the mouth of the test tube in which a metal has reacted with sulphuric acid, the matchstick produces a pop-sound nd stops burning. this is due to evolution of hydrogen gas after the reaction. THE POP Sound MADE IS DUE TO THE EVOLUTION OF HYDROGEN GAS, THEREBY, BURNING OUT THE FLAME.

3)Rust is an iron oxide, usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture.4Fe + 3O2 → 2Fe2O3

4)Since Fe is a metal, Rust is nothing but a metal oxide. We know that Metal oxides are basic in nature. Hence on adding water to rust we get Basic Hydroxide

5) Chlorine kills pathogens such as bacteria and viruses by breaking the chemical bonds in their molecules. Disinfectants that are used for this purpose consist of chlorine compounds which can exchange atoms with other compounds, such as enzymes in bacteria and other cells.

6)Pure silver is noble metal and doesn't react easily with oxygen and water. But silver reacts with the sulphides in the air to form silver sulfide which is black in colour. Besides the silver used for making jewellery is not pure. It is mixed with other elements like copper and zinc which contribute to its oxidation.

7)When copper vessel is exposed to moist air for long period of time then it undergoes various chemical reactions. As the metal reacts with various chemicals and gases present in the atmosphere and it results in the formation of copper carbonate which is green in color.

I hope it helps u but I would rather suggest u take the hittings as ur mom is doing it for your good I hope ur mom doesn't curse me