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xenn [34]
2 years ago
15

Surrounding

Chemistry
1 answer:
umka2103 [35]2 years ago
4 0

Based on the data given in this question, the statement that shows a correct interpretation of the chemical reactions is as follows: reaction A was exothermic and reaction B was endothermic.

<h3>What are endothermic and exothermic reactions?</h3>

Endothermic reaction is a chemical reaction that absorbs heat energy from its surroundings while exothermic reaction is a reaction that releases energy in the form of heat.

Endothermic reactions leave their surroundings cooler while exothermic reactions leave their surroundings hotter.

According to this question, the initial and final temperatures of two reactions are given as follows:

  • Reaction A: 25.1°C and 30.2°C
  • Reaction B: 25.1°C and 20.0°C

From the above data, reaction A was exothermic because it increased the surrounding temperature and reaction B was endothermic because it reduced the surrounding's temperature.

Learn more about endothermic and exothermic at: brainly.com/question/23184814

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Which part of an atom is positively charged, and which part is negatively charged?.
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The electron is negatively charged, while the nucleus is positively charged.

Protons and electrons, two of the subatomic particles, each have an electrical charge of one or the other. On the other hand, neutrons lack a charge. Protons and neutrons make up the nucleus (or core) of an atom. Where an atom belongs on the Periodic Table is essentially determined by the number of protons in its nucleus, or "atomic number." The features of an atom are also largely determined by the number of protons in the nucleus.

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To know more about Proton.

brainly.com/question/12535409

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shusha [124]

Explanation:

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( b )

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