<span>Carbon has different isotopes. What is different between an atom of 12C and an atom of 13C?
Question 7 options:
A.number of protons in the nucleus
B.number of electrons in the atom
C.number of protons and electrons in the atom This is correct.
D.number of neutrons in the nucleus</span>
<span>If two fluorine atoms bonded with each other what kind of bond would be involved?
A. ionic
B. valence
C. covalent
D. non-metallic
C. covalent
</span>
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
