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3 years ago

Is the following nuclear equation balanced? Yes or No.

Chemistry

2 answers:

4vir4ik [10]3 years ago

5 0

Answer: No

Explanation:

$_{85}^{218}\textrm{At}\rightarrow _{84}^{218}\textrm{Po}+_{-1}^0\beta$

A balanced nuclear equation is one in which the atomic number and mass number remains same on both sides of the equation i.e the number of protons and neutrons remain same.

In the given equation, the atomic number on left hand side is 85 and the mass number is 218. The atomic number on the right hand side will be (84-1)= 83 and the mass number is (218+0)=218. Thus the equation is not balanced as the mass number is same but the atomic number is different.

Maru [420]3 years ago

3 0

Answer:

Reason:

During a beta decay, one neutron convert into one proton and one electron. The proton remained in nucleus while electron move away known as beta radiation. So atomic mass will be remained same but atomic no will increase by one. So correct ans will be with 218, 86 Po and beta radiation.

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1 year ago

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3 years ago

Read 2 more answers

Salt dissolved in water is a solution, therefore _____.

saveliy_v [14]

Answer: Correct options are as follows.

salt is not chemically bonded to water.

salt and water retain their own chemical properties.

Explanation:

When salt is dissolved in water then it means that it is a physical change as salt has completely dissociated into ions but they are not chemically combined to the water molecules.

As a result, both salt and water will retain their chemical properties.

For example, NaCl when dissolved in water will dissociate as follows.

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Only the particles of salt have evenly distributed in water.

And, when a components of a salt chemically combine with another substance then it will form a new compound.

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