Which of the following happens during a chemical change? check all of the boxes that apply. one atom or more changes into atoms of another element. new substances with different properties are formed. solids, liquids, or gases may form. reaction mixtures always give off some heat. reaction mixtures always need to be heated.

During a chemical change, new substances with different properties are formed.

There are two types of change that matter can undergo:

When matter undergoes a physical change, no new substance is formed but when matter undergoes a chemical change, a new substance is formed with different properties.

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New substances with different properties are formed.  

Solids, liquids, or gases may form.  

Step-by-step explanation:

A is wrong. Atoms of one element do not change into atoms of another in chemical reactions.

D is wrong. Many reactions spontaneously absorb heat.

E is wrong. Many reaction mixtures are so unstable that they must be cooled to prevent the reaction from going so fast that an explosion might result.

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.