Question

Расставьте коэффициенты и определите тип реакции 1)MgCO3 -> Mg) + CO 2)CuO + Al -> Al2O3 + Cu 3)N2 + O2 -> NO 4)Ba(NO3)2 + K2SO3 - > BaSO4 + KNO3 5)Al + H2SO4 -> Al(SO4)3 + H2 6)CuO + HCl -> CuCl2 + H2O 7)Fe + O2 -> Fe3O4 Слава Галине Францивне

Answer 1

MgCO3 -> Mg+ 3CO- соединение
3CuO + 2Al -> Al2O3 + 3Cu-замещение
N2 + O2 -> 2NO-соединение
Ba(NO3)2 + K2SO3 - > BaSO4 +2 KNO3-обмен
Al + 3H2SO4 -> Al(SO4)3 + 3H2-замещение
CuO + 2HCl -> CuCl2 + H2O-обмен
3Fe + 2O2 -> Fe3O4-соединение

Answer 2

Balancing Chemical Equations and Determining Reaction Types

1) MgCO3 -> Mg + CO2

To balance the chemical equation for the reaction between magnesium carbonate and heat, we need to ensure that there is an equal number of each type of atom on both sides of the equation. The balanced equation is:

MgCO3 -> MgO + CO2

This reaction is a decomposition reaction, where a single compound breaks down into two or more simpler substances.

2) CuO + Al -> Al2O3 + Cu

The balanced chemical equation for the reaction between copper(II) oxide and aluminum is:

4CuO + 2Al -> 2Al2O3 + 4Cu

This reaction is a redox reaction, specifically a displacement reaction, where one element displaces another in a compound.

3) N2 + O2 -> NO

The balanced chemical equation for the reaction between nitrogen and oxygen to form nitrogen monoxide is:

N2 + O2 -> 2NO

This reaction is a synthesis reaction, where two or more simple substances combine to form a more complex product.

4) Ba(NO3)2 + K2SO3 -> BaSO4 + 2KNO3

The balanced chemical equation for the reaction between barium nitrate and potassium sulfite is:

Ba(NO3)2 + K2SO3 -> BaSO4 + 2KNO3

This reaction is a double displacement reaction, where the positive ions of two ionic compounds exchange places to form two new compounds.

5) Al + H2SO4 -> Al2(SO4)3 + H2

The balanced chemical equation for the reaction between aluminum and sulfuric acid is:

2Al + 3H2SO4 -> Al2(SO4)3 + 3H2

This reaction is a single displacement reaction, where an element reacts with a compound and displaces another element from it.

6) CuO + 2HCl -> CuCl2 + H2O

The balanced chemical equation for the reaction between copper(II) oxide and hydrochloric acid is:

CuO + 2HCl -> CuCl2 + H2O

This reaction is a single displacement reaction, where an element reacts with a compound and displaces another element from it.

7) 4Fe + 3O2 -> 2Fe2O3

The balanced chemical equation for the reaction between iron and oxygen to form iron(III) oxide is:

4Fe + 3O2 -> 2Fe2O3

This reaction is a synthesis reaction, where two or more simple substances combine to form a more complex product.

I hope this helps! If you have any more questions or need further assistance, feel free to ask.