Which formula represents a molecular compound? (1) Kr (3) N2O4 (2) LiOH (4) NaI
2 answers:
Answer: Option (3) is the correct answer.
Explanation:
A molecular compound is a compound in which atoms used to share electrons and thus results in the formation of covalent bonds.
For example, is a covalent compound and hence, it is a molecular compound.
Whereas LiOH and NaI are ionic compounds as their atoms has transferred electrons.
Therefore, we can conclude that out of the given options, is the formula which represents a molecular compound.
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1. Scientists use seismometers to measure the earthquake activity that occurs beneath a volcano. They then predict the eruption of that volcano.
2. Scientists measure the amount of these gases to determine the amount of magma present in the volcanic reservoir.
Explanation:
When a volcano is near eruption Earthquake activity gets stronger and stronger. Scientists use a wide variety of techniques to monitor volcanoes, including seismographic detection of the earthquakes and tremor that almost always precede eruptions, precise measurements of ground deformation that often accompanies the rise of magma, changes in volcanic gas emissions, and changes in gravity and.
Scientists can use the FTIR or Fourier Transform Infrared Spectrometer to measure dissolved volatile concentrations as described above or can be used to measure several gases emitted from a volcano simultaneously. The device can be used both as an open-path or closed-path system. I had just taken the test and got the question right as well
Answer:
1.
2.
Explanation:
Hello,
1. In this case, for the given p-V equation, one could use the two states to form a 2x2 linear system of equations in terms of A and B:
Whose solution by any method for solving 2x2 linear system of equations (elimination, reduction or substitution) is:
2. Now, for us to compute the work, we must first compute n, as the power relating the pressure and volume for this process:
Now, we compute the work:
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