Answer:
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).
Answer:
defined as a process in which mo heat transfer take place
Explanation:
is a process which occurs without transferring heat /mass between the system and it's surrounding.
Answer: 
Explanation:
Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.
A more reactive element is one which can easily lose or gain electrons as compared to the other element.
As Magnesium is more reactive than tin, it can easily displace tin from its salt solution 
and form magnesium chloride and tin in elemental form.
The balanced chemical equation is:
Answer:
Current randomly flows around the circuitt
Answer:
d carbon dioxide
Explanation:
Carbon dioxide is a pure substance that is a compound (two or more elements bonded together).
