4.) The temperature of solid silver increases from 30C to 40C by the addition of 117.5 joules of heat. What is the mass of the silver?

The mass of silver is 49 g (0.049 kg).

Explanation:

Initial temperature = C

Final temperature = C

Quantity of heat required = 117.5 J

Specific heat capacity of silver = 0.240 J/g

mass of the silver can be determined by;

Q = mcΔθ

Where: Q is the quantity of heat required, m is the mass of substance, c is the specific heat capacity of the substance and Δθ is the change in temperature.

So that,

117.5 = m x 0.240 x (40 - 30)

117.5  = m x 0.24 x 10

        = 2.4m

m =

   = 48.9583

m ≅

m = 49 g

The mass of silver is 49 g (0.049 kg).

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.