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Properties of subatomic particles.
1. Fill in the missing relative masses and relative charges for each of the subatomic particles.
Relative mass
Relative charge
a.Electron
1-
b.Proton
c.Neutron
1839
2. Balance the equations for the correct element next to its description at 25 degrees Celsius.
a.Ca→ _ +_
b. K→ _ +_
c. Sr→ _+_
d. Rb→ _+_
3.Balance the equation for the reactions of cautions with electrons.
a.Mg 2+ +_ →_
b. Li+ +_→_
c. 2H+ +_→_
d. Na+ +_→_
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If a sample of sodium is dropped into a container of water the reaction is:
Write balanced chemical equations for the following reactions.
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The reaction between white phosphorous and oxygen produces solid tetra phosphorus decoxide (P 4 O 10 ).
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
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