They become more stable because they achieve a full outer shell of valence electrons with the magic number of 8.
The answer is b) light waves travel faster than sound waves.
Answer : The heat your body transfer must be, 25.1 kJ
Explanation :
Formula used :

or,

where,
Q = heat = ?
m = mass of water = 500.0 g
c = specific heat of water = 
= initial temperature = 
= final temperature = 
Now put all the given value in the above formula, we get:


Therefore, the heat your body transfer must be, 25.1 kJ
Answer:
new substances formed, as evidenced by the color changes and bubbles. Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.
HOPE THIS HELPED!!!!!!!!!!!!!!XDDDDDDDDDD