Question

Расставьте коэффициенты в схемах химических реакций и укажите тип каждой из них: а) AgNO3+Cu --> Cu(NO3)2+Ag; б) P2O5+ H2O --> H3PO4.

Answer 1

2AgNo3_Cu=cu(no3)2+ag

Answer 2

2AgNO3+Cu->Cu(NO3)2
+2Ag;
P2O5+3H2O->2H3PO4.

Answer 3

Chemical Equation: AgNO3 + Cu -> Cu(NO3)2 + Ag

The given chemical equation is: AgNO3 + Cu -> Cu(NO3)2 + Ag.

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Let's balance the equation step by step:

1. Start with the metals: Copper (Cu) is already balanced on both sides.

2. Balance the non-metals: Nitrogen (N) is already balanced on both sides. Oxygen (O) is not balanced, as there are 3 oxygen atoms on the left side and 6 oxygen atoms on the right side. To balance the oxygen atoms, we need to add a coefficient of 2 in front of AgNO3 on the left side.

The balanced equation is: 2AgNO3 + Cu -> Cu(NO3)2 + 2Ag.

Now, let's determine the type of reaction for this equation:

The given reaction is a single replacement reaction, also known as a displacement reaction. In this type of reaction, one element replaces another element in a compound. In this case, copper (Cu) replaces silver (Ag) in silver nitrate (AgNO3), resulting in the formation of copper(II) nitrate (Cu(NO3)2) and silver (Ag).

Chemical Equation: P2O5 + H2O -> H3PO4

The given chemical equation is: P2O5 + H2O -> H3PO4.

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Let's balance the equation step by step:

1. Start with the non-metals: Oxygen (O) is not balanced, as there are 5 oxygen atoms on the left side and 4 oxygen atoms on the right side. To balance the oxygen atoms, we need to add a coefficient of 4 in front of H3PO4 on the right side.

The balanced equation is: P2O5 + 4H2O -> H3PO4.

Now, let's determine the type of reaction for this equation:

The given reaction is a hydration reaction. In this type of reaction, water (H2O) reacts with a compound to form a new compound. In this case, phosphorus pentoxide (P2O5) reacts with water (H2O) to form phosphoric acid (H3PO4).

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