Question

Срочно помогите!!! 1. Расставь коэффициенты в уравнениях реакций: Na+O2 - Na2O; Na+H2O = NaOH+H2 Fe(OH)3 - Fe2O3 + H2O; HCl(хлор) + Br (OH)2 - BrCl2(хлор) + H2O Укажите тип хим. реакции и названия веществ

Answer 1

2Na+O2=2Na2O -соединение
Na+H2O=NaOH+H2 -замещения
2Fe(OH)3=Fe2O3+3H2 -разложение
HCI+Br(OH)2=BrCI+2H2O --обмен

Answer 2

Balancing Chemical Equations:

1. Na + O2 → Na2O: - To balance this equation, we need to ensure that the number of atoms on both sides of the equation is equal. - The balanced equation is: 4Na + O2 → 2Na2O.

2. Na + H2O → NaOH + H2: - To balance this equation, we need to ensure that the number of atoms on both sides of the equation is equal. - The balanced equation is: 2Na + 2H2O → 2NaOH + H2.

3. Fe(OH)3 → Fe2O3 + H2O: - To balance this equation, we need to ensure that the number of atoms on both sides of the equation is equal. - The balanced equation is: 2Fe(OH)3 → Fe2O3 + 3H2O.

4. HCl + Br(OH)2 → BrCl2 + H2O: - To balance this equation, we need to ensure that the number of atoms on both sides of the equation is equal. - The balanced equation is: 2HCl + Br(OH)2 → BrCl2 + 2H2O.

Types of Chemical Reactions and Substance Names:

1. Na + O2 → Na2O: - This is a combination reaction, where two or more substances combine to form a single product. - The substance names are: - Na: Sodium - O2: Oxygen - Na2O: Sodium oxide

2. Na + H2O → NaOH + H2: - This is a single displacement reaction, where one element replaces another element in a compound. - The substance names are: - Na: Sodium - H2O: Water - NaOH: Sodium hydroxide - H2: Hydrogen gas

3. Fe(OH)3 → Fe2O3 + H2O: - This is a decomposition reaction, where a compound breaks down into two or more simpler substances. - The substance names are: - Fe(OH)3: Iron(III) hydroxide - Fe2O3: Iron(III) oxide - H2O: Water

4. HCl + Br(OH)2 → BrCl2 + H2O: - This is a double displacement reaction, where the positive and negative ions of two compounds exchange places. - The substance names are: - HCl: Hydrochloric acid - Br(OH)2: Bromic acid - BrCl2: Dibromine monochloride - H2O: Water

I hope this helps! Let me know if you have any further questions.