Complete the following fusion reaction Which symbol represents a positron? If a

Question

Complete the following fusion reaction Which symbol represents a positron? If a nucleus undergoes beta panicle emission its atomic number decreases by one and its mass number is unchanged its atomic number is unchanged and its mass number decreases by one both its atomic number and its mass number are unchanged d its atomic number increases by one and its mass number is unchanged, its atomic number is unchanged and its mass number increases by one. Complete the following fission reaction. Assuming the following reaction proceeds in the forward direction. Cu2+ (aq) is oxidized and Ca(s) is reduced Ca(s) is oxidized and Cu2+(aq) is reduced. Ca(s) is oxidized and Ca2+(aq) is reduced Cu(s) is oxidized and Ca(s) is reduced. Cu2+ (aq) is oxidized and Ca2+(aq) is reduced.

Explanation / Answer

13)

Let the reaction be

3H1 + 9Be4 ---> 1n0 + yAx

sum of atomic numbers in reactants = sum of atomci numbers in products

so

1 + 4 = 0 + x

x = 5

atomic number 5 , so it is Boron (B)

sum of mass number in reactants = sum of mass number in products

so

3 + 9 = 1 + y

y = 11

so the answer is 11 B 5

the answer is option C

14) the answer is option A

15) d

16)   Let the reaction be

236 U 92 ----> 141 Ba 56 + y A x +   3 ( 1n0)

refer to the solution of problem 13

we get

92 = 56 + x + 0

x = 36

atomic number 36 is Krypton

236 = 141 + y + 3

y = 92

so the answer is option b

17)

oxidation : increase in oxidation number

reduction : decrease in oxidation number

so the answer is option b

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