Question

those are the specific heat values. which substance has the highest specific heat capacity?
au (gold)
al (aluminum)
h₂o (water)
rewatch

Explanation:

To determine which substance has the highest specific heat capacity, we recall the known specific heat values: Gold (Au) has a relatively low specific heat, Aluminum (Al) has a moderate specific heat, and Water ($\ce{H_2O}$) has a very high specific heat capacity (about $4.18\ \text{J/g°C}$) compared to metals like gold (around $0.129\ \text{J/g°C}$) and aluminum (around $0.900\ \text{J/g°C}$). So water has the highest specific heat capacity among the given options.

Answer:

$\ce{H_2O}$ (water)