Match the reaction to the type that best describes it.

Answers with detail given below.

Explanation:

1) NaBr + KF    →       NaF  + BrK

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AD +CB

2)   2Cu + MnCl₂       →      2CuCl + Mn

Single replacement:

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

AB + C → AC + B

3) CO₂     →    O₂  + C

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

4) C + 2H₂      →    CH₄

Combination reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

c. 4.54 x 10–12 j happens to be correct