Pls help ill mark as brainliest Q8. Na2CO3 Na2O + CO2

is this combustion, synthesis, single replacement, double replacement, or decomposition ?

Decomposition

Explanation:

First, you have one compound, then they break up, or decompose, into two compounds.

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.