Answer:
![\boxed{-6.29 \times10^{5}\text{ J}}](https://tex.z-dn.net/?f=%5Cboxed%7B-6.29%20%5Ctimes10%5E%7B5%7D%5Ctext%7B%20J%7D%7D)
Explanation:
Step 1. Determine the cell potential
<u> E°/V </u>
2×[Cr ⟶ Cr³⁺ + 3e⁻] 0.744 V
<u>3×[Cu²⁺ + 2e⁻ ⟶ Cu] </u> <u>0.3419 V
</u>
2Cr + 3Cu²⁺ ⟶ 3Cu + 2Cr³⁺ 1.086 V
Step 2. Calculate ΔG°
![\Delta G^{\circ} = -nFE_{\text{cell}}^{^{\circ}} = -6 \times 96 485 \times 1.086 = \text{-629 000 J}\\\\= \boxed{-6.29 \times10^{5}\text{ J}}](https://tex.z-dn.net/?f=%5CDelta%20G%5E%7B%5Ccirc%7D%20%3D%20-nFE_%7B%5Ctext%7Bcell%7D%7D%5E%7B%5E%7B%5Ccirc%7D%7D%20%3D%20-6%20%5Ctimes%2096%20485%20%5Ctimes%201.086%20%3D%20%5Ctext%7B-629%20000%20J%7D%5C%5C%5C%5C%3D%20%5Cboxed%7B-6.29%20%5Ctimes10%5E%7B5%7D%5Ctext%7B%20J%7D%7D)
Answer: They are referred to as isotopes, which are a form of an element that has different numbers of neutrons in their nucleus.
The words that complete the blanks are hypothesis and experimentation.
<h3>What is scientific knowledge?</h3>
The process by which scientists obtain information and establish knowledge is;
Observation ---> hypothesis ------> experiments ------> Theory -------> Law.
Thus after the process of observation what we have is merely a scientific hypothesis that needs to pass through the process of rigorous experimentation before it is proven to be true.
Thus the words that complete the blanks are hypothesis and experimentation.
Learn more about scientific knowledge:brainly.com/question/10601194
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Answer:
- Scientific question: does life exist on other planets?
- Non-scientific question: there are aliens that look like people?
Explanation:
A scientific question is a coherent question that can be used to develop a scientific hypothesis. Thus, a scientific question must be testable, verifiable, measurable and relevant to the topic of study. In the scientific method, the hypothesis is subsequently tested by experimental or observational procedures, where the results can be used to understand some particular aspect of the real world. On the other hand, a non-scientific question is a light conjecture which cannot be proved by using the scientific method.
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