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s2008m [1.1K]
3 years ago
15

PLEASE HELP it would be really nice of you to answer this question i would be very grateful <3

Chemistry
2 answers:
Aleksandr-060686 [28]3 years ago
7 0

Answer: D (The abundance percentage of each isotope)

Explanation: hope this helps!

Leviafan [203]3 years ago
3 0
The answer is pretty much d
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Dimas [21]

Answer:

Tha answer I s D. Hope it will work to u

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3 years ago
A 4 kg rock is rolling 10 m/s find its kinetic energy
larisa [96]
The answer is 200 J

The kinetic energy (KE) is:
KE = 1/2 m * v²
m - mass of the object
v - velocity of the object

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m = 4 kg
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KE = 1/2 * 4 kg * 10² m/s
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5 0
3 years ago
Which substance is an electrolyte <br> 1) CCl4 <br> 2)SiO2<br> 3)C6H12O6<br> 4) H2SO4
Elena L [17]
Electrolyte is any species which when dissolved in solvent particularly water dissociates into cations and anions. Electrolytes are conductors of electricity. In given options;

CCl₄ (Tetrachloromethane) is a covalent compound. And it doesn't dissociate to any cation or anion. So it is not electrolyte.

SiO₂ (Silicon Dioxide) is also covalent in nature and exist in giant framework. It is not electrolyte.

Glucose (C₆H₁₂O₆) is also covalent compound. And doesn't produced any ion in water, hence it is not electrolyte.

H₂SO₄ (Sulfuric acid) is Electrolyte. When it is dissolved in water it produces H⁺ and SO₄²⁻ ions as follow,

                                 H₂SO₄    →      2 H⁺ ₍aq₎    +   SO₄²⁻ ₍aq₎

Result:
               H₂SO₄ is electrolyte.
5 0
3 years ago
Carbon-14 has a half-life of 5,730 years. In how many years will 120 grams of Carbon-14 decay to 15 grams? 11,460 years 17,190 y
erastova [34]
120 grams of Carbon-14 decays to 15 grams in 17,190 years.
7 0
3 years ago
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