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jenyasd209 [6]
3 years ago
10

How much heat energy is required to raise the temperature of 20 kilograms of water from 0°C to 35°C?

Chemistry
1 answer:
alexgriva [62]3 years ago
7 0
The heat energy needed is 2928800J. Mass is given as 20 (kg)
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What order must the earth, the sun, and the moon be in to be a lunar eclipse?​
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A total lunar eclipse takes place when the Earth comes between the Sun and the Moon and covers the Moon with its shadow. When this happens, the Moon can turn red, earning it the nickname of Blood Moon.

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Let’s say that you have a solvatochromic compound that appears red in a solvent. You dissolve the compound in another solvent an
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3 0
3 years ago
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When Iodine-131 emits a β particle (beta particle), what nuclide is produced? *
k0ka [10]

When Iodine-131 emits a β particle will produce Xe-131

<h3>Further explanation </h3>

Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,  

  • alpha α particles ₂He⁴
  • beta β ₋₁e⁰ particles
  • gamma particles ₀γ⁰
  • positron particles ₁e⁰
  • neutron ₀n¹

So for reaction Iodine-131 :

\tt _{53}^{131}I\rightarrow _{-1}^0\beta +_{54}^{131}Xe

5 0
3 years ago
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