This indicates that the reaction is exothermic meaning that it releases heat/energy
Answer:
becuase of the sun
in different places some places would be cold
Answer:
toilet seat and washing of hands ✋ very well
<span>The addition of a catalyst to a chemical reaction provides an alternate pathway that c</span>atalysts lowers the activation energy.
Wave speed = frequency x wavelength
= 100 x 0.3
= 30 m/s.
Hope this helps!