Answer:
a: iron is a substance
Explanation:
because its hard and brittle and classified as a metal
Answer:
75.12 J
Explanation:
Applying,
Q = CΔT................ equation 1
Where Q = amount of heat, C = Heat capacity, ΔT = temperature rise.
From the question,
Given: C = 62.6 J/K, ΔT = 1.20°C
Substitute these values into equation 1
Q = 62.6(1.20)
Q = 75.12 J
Hence the amount of heat it absorbed is 75.12 J
Answer:
I think the answer is stored energy
Explanation:
The answer is 20 because in an atom no of protons equal no of electrons