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Brums [2.3K]
3 years ago
13

Which describes reproducibility

Chemistry
1 answer:
Leya [2.2K]3 years ago
6 0
Reproducibility is a major principle of the scientific method. It means that a result obtained by an experiment or observational study should be achieved again with a high degree of agreement when the study is replicated with the same methodology by different researchers.
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Hydrogen reacts with 0.771 g of carbon to form 0.90 g of a compound. What is the mass percent of hydrogen in the compound
morpeh [17]
Answer: 14.3%

Explanation: In order to find the mass percent of hydrogen in this compound, you must determine how many grams of hydrogen you'd get in 100 g of compound. 

In your case, you know that an unknown mass of hydrogen reacts with 0.771 g of carbon to form 0.90 g of hydrocarbon, which is a compound that contains only carbon and hydrogen. 

Use the total mass of the hydrocarbon to determine how many grams of hydrogen reacted with the carbon.

Now, if 0.90 g of this compound contain 0.129 g of hydrogen, it follows that 100 g of this compound will contain.

So, if 100 g of this compound contain 14.33 g of hydrogen, it follows that the mass percent of hydrogen is 14.3%


<span><span><span><span><span><span><span><span><span /></span></span></span></span></span></span></span></span><span><span>
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4 0
4 years ago
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Atomic number of a member of halogens
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Bromine 35

Chlorine 17

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Astatine 85
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3 years ago
Test Question just answer random.
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Answer:

U are a fool

Explanation:

Because you didn't even asked a question

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Chlorine atoms tend to form ions by taking in one electron. This means the atom has
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The additional electron does not affect the atomic number nor the mass number. The atomic mass is the sum of neutrons and protons. Electrons are not accounted in atomic mass as their mass is so small, approximately 1/1,836 of a protons mass. Atomic number is the total number of protons of an atom. Chlorine taking in another electron will not change its atomic number. In an ion, the atomic number and atomic mass do not change from the original.

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Which of the following will occur soon after a population of prey increases slightly in size?
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It is E. because the predators will have slightly more meals with their prey slightly increasing population.
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