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Alexandra [31]
3 years ago
13

The diagram below shows changes to the nucleus of an atom.

Chemistry
2 answers:
anzhelika [568]3 years ago
8 0

Answer:

maybe 1 or 3 im not sure

Explanation:

i didn't study it yet sorry for not helping but try asking someone else

rodikova [14]3 years ago
7 0
1. Energy is released as a result of atomic fission
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Once the reaction has occurred as completely as possible, what mass (in g) of the excess reactant is left
Vera_Pavlovna [14]
So C12 is the limiting reactant and P4 is the excess
Mass P4 consumed= 0.31 mol X 123.9 g/mol =38.41 g P4 consumed.
Hope i helped
6 0
3 years ago
what would be the final volume when 2.20 M solution is made from 25.0 mL of a 12.0 M solution? plzz show work
cupoosta [38]

Answer:

136.36 mL

Explanation:

Here we have to use the dilution formula

From C1V1= C2V2

Where;

C1= initial concentration of the solution= 12.0 M

C2= final concentration of the solution= 2.20 M

V1 = initial volume of the solution= 25.0 ml

V2= final volume of the solution= ?????

Then recall;

C1V1=C2V2

V2 = C1V1/C2

Substituting values from the parameters given;

V2= 12.0 × 25.0 / 2.20

V2= 136.36 mL

7 0
3 years ago
Use the periodic table to find the molar mass of each of the following elements. Sodium (Na): g/mol Oxygen (O): g/mol Carbon (C)
ruslelena [56]
The Molar mass of an atom corresponds directly with its atomic mass on the periodic table.
7 0
3 years ago
Read 2 more answers
Which is evidence that the reaction below is a redox reaction? 2Na + Cl2 → 2NaCl
Mamont248 [21]
A redox reaction --> a reaction whereby oxidation & reduction occurs
Reduction: 
Charge of Cl2 = 0
Charge of Cl- in NaCl = -1
Hence, since charge of Cl2 decreased from 0 in Cl2 to -1 in NaCl, reduction occured. 
Oxidation:
Charge of Na = 0
Charge of Na+ in NaCl = +1
Hence, since charge of Na increased from 0 in Na to +1 in NaCl, oxidation occured.
Since both oxidation & reduction occured in the reaction, it is a redox reaction.  
3 0
3 years ago
How is matter and energy conserved when liquid is frozen
Brut [27]

Answer:

The big energy change when water freezes is in the potential energy of interactions between the water molecules.

Explanation:

I am not to sure if this is correct, but I hope it helps in some way.

3 0
4 years ago
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