The motion of particles can be changed by the temperature you put it at.
<span>the sharing of electron pairs between atoms</span>
Answer:
A gas is evolved
The ingredients can not be recovered
Explanation:
A chemical change is one in which a new substance is formed and it is not easily reversible.
One major ingredient used in cake baking is the baking powder or baking soda.
Baking a cake can be viewed as a chemical change. This is because, when the baking powder or soda is added in the presence of yeast, carbon dioxide gas is evolved as tiny bubbles of gas which makes the cake light and fluffy. Heat is equally given off in the process. The baking powder and other cake ingredients can not be recovered, hence, we can conclusively assert that a chemical change has taken place.
C) Weathering can be chemical or physical; deposition
is only chemical
Answer: Option B and E
Explanation: No of neutrons (n) = Mass number - Atomic number= A-Z
A. n=1-1=0
B. n=2-1=1
C. n= 3-1=2
D. n= 2-2=0
E. n=3-2=1
F. n=4-2=2
Hence options B and E are correct
