Answer:
5.65mg of the isotope remains
Explanation:
The radioactive decay follows the equation:
Ln[A] = -kt + ln[A]₀
<em>Where [A] is amount of the isotope after time t, k is decay constant, and [A]₀ is initial amount of the isotope.</em>
k = ln 2 / Half-life
k = ln 2 / 3.82 days
k = 0.18145days⁻¹
Replacing:
Ln[A] = -0.18145days⁻¹*10.1days + ln[35.3mg]
ln[A] = 1.7312
[A] = 5.65mg of the isotope remains
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Answer:
The answer to your question is:
Explanation:
Ion is an atom that carries out a positive or a negative charge.
It is formed when an atom loses electrons. Yes, when an atom loses electrons then is formed a positive ion.
It is usually a nonmetallic element. Incorrect. Ions can be form by metallic or non metallic ions.
It has more electrons than protons. Yes, when an atom gains electrons is formed a negative ion.
It is formed when an atom gains protons. I think is incorrect, ions are formed when they gain or lose electrons not protons.
Answer:
2NaOH(aq) + H2SO4(l) → 2H2O(l) + Na2SO4(aq)
Explanation:
2NaOH(aq) + H2SO4(l) → 2H2O(l) + Na2SO4(aq)
Hope that this helps, lmk if you need clarification
Part 1)
1) Carbon: C
2) C
3) E
4) M
5) C
6) C
7) Salad? Like the vegetable? Its a M
8) C
9) M
Part 2)
10) C
11) E
12) B
13) A
14) D
Part 3) I’ll do it in the comments.