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Aleksandr-060686 [28]
2 years ago
5

Al2(CO3)3

Chemistry
1 answer:
Alborosie2 years ago
3 0

Answer:

7. 6 atoms po

Explanation:

sana makatulong po

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Fireworks exploding in the sky and giving off light are an example of a(n) _____.
Serggg [28]
Exothermic change. Because the firework when it exploded, released energy in the form of light. In exothermic changes energy is released, and in endothermic changes energy is absorbed.

- This wouldn't be a physical change, but instead a chemical change. A clue that it is a chemical change is that energy was given off.
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3 years ago
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What is T1 in Kelvin?<br> 0 26K<br> 178K<br> 299K<br> 451K
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The answer is C. 299k
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3 years ago
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A
DIA [1.3K]
  • V_1=49.8mL
  • T_1=18°C=291K
  • T_2=83°C=356K

Using Charles law

\\ \sf\longmapsto V_1T_2=V_2T_1

\\ \sf\longmapsto V_2=V_1T_2\div T_1

\\ \sf\longmapsto V_2=\dfrac{49.8(356)}{291}

\\ \sf\longmapsto V_2=\dfrac{17728.8}{291}

\\ \sf\longmapsto V_2=60.9mL

5 0
2 years ago
Why do isotope decay
BaLLatris [955]

Instability

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Isotopes decays because they are unstable. Stable isotopes do not decay.

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  • Any nucleus with a neutron/proton combination different from its stability ratio either too many neutrons or too many protons will become unstable.
  • Such nuclide will split into one or more other nuclei with the emission of small particles of matter and considerable amount of energy.

Learn more:

Radioactive brainly.com/question/10125168

#learnwithBrainly

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