Examine the equation
fe + cu(no3)2
fe(no3)2 + cu
what is the best classification for the equation's reaction?
single displacement
double-displacement
synthesis
combustion
decomposition

Single displacement.

Explanation:

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Chemical equation:

Fe + Cu(NO₃)₂   →   Cu + Fe(NO₃)₃

Balanced chemical equation:

2Fe + 3Cu(NO₃)₂   →   3Cu + 2Fe(NO₃)₃

This is single displacement reaction in which iron displace the copper and form iron nitrate.

Chemical equation:

Cu + Fe(NO₃)₂   →   CuNO₃ + Fe

Balanced chemical equation:

2Cu + Fe(NO₃)₂   →   2CuNO₃ + Fe

This is single displacement reaction in which copper displace the iron and form copper nitrate.

3 1/4 %

explanation:

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.