Answer:
The answer is A, It shows an exothermic overall reaction.
Explanation:
Answer:
Compound is like a community and needed more than 2 atoms.
Explanation:
1 atom
2 atoms= 1 molecule
3 atoms (either of same or different elements)= compound
Answer:
C. Energy can change one form to another
Explanation:
There are many different types (forms) of energy
Answer:
77.5°C
Explanation:
Data obtained from the question include the following:
Mass (M) = 100g
Heat (Q) = 1x10^3 J
Change of temperature (ΔT) =..?
Note: The specific heat capacity (C) of gold = 0.129 J/g°C
With the above information obtained from the question, we can obtain the change in temperature as follow:
Q = MCΔT
Divide both side by MC
ΔT = Q/MC
ΔT = 1x10^3 / (100 x 0.129)
ΔT = 77.5°C
Therefore, the change in temperature is 77.5°C
