Answer:
option (D) NaOH is right answer
Answer:
The answer is "Verification of results
".
Explanation:
The scientific system consisted inside an iterative or cyclical process which experimental results and technically confirm a theory. There are four things which scientific design aims people explain:
- Subject of investigation characterization.
- Hypothesis from its consequences of its characterization.
- Forecasts.
- Experimentation which show the precision and consistency of the hypothesis.
Its first stage of analysis involves collecting the samples taken for the current context, that are the focus of discussion, and then testing the samples taken to determine the absorbance of soft and hard salts throughout the water. It is required for water quality to be determined. Therefore, the collection and testing of samples falls under the scientific design category of classification, whereby Shamekha tried to verify the findings.
Answer:
<u>yes, this is an acceptable practice in research.</u>
<u>Explanation:</u>
Note that, having a different result in one's research does not imply it is automatically invalid. However, because there may have been some errors or limitations in the previous work by the male researcher, it is possible that the later results are more accurate, even though she used the same procedures. She may have been more careful when calculating her results.
The answer is (2). To calculate the density, you need to divide the mass with volume. When doing division, the significant figures of result is the minimal of the numbers using before. So the answer is 2.
From the Dalton's law of partial pressures, the pressure of the hydrogen gas is 91.83 kPa.
<h3>What is partial pressure?</h3>
In a mixture of gases, the total pressure is the sum of the pressures of the individual gases in the mixture according to the Dalton's law of partial pressures.
In this case, the partial pressure of the hydrogen gas is Phydrogen, the partial pressure of water is Pwater and the total pressure is PT.
Hence;
Phydrogen = PT - Pwater
95 - 3.17 = 91.83 kPa
Learn more about partial pressure:brainly.com/question/14281129
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