<span>B)Na2SO4 and SrSO4 is the answer</span>
Answer: -
Thus ¹³C ⁻ ion has 7 electrons, 7 neutrons and 6 protons.
Explanation: -
The mass number for ¹³C = 13
The atomic number for ¹³C = 6
Number of electrons present in ¹³C = atomic number = 6
Number of protons present in ¹³C = atomic number = 6
Number of neutrons present in ¹³C = mass number - atomic number = 13 - 6 = 7
For ¹³C ⁻ ion,
Number of electrons present = 6 + 1 = 7
Thus ¹³C ⁻ ion has 7 electrons, 7 neutrons and 6 protons.
Answer:
The answers are
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
Whitecap waves are caused by the wind, while swells are caused by surface gravity.
Q = mc∆T
m = mass
c = specific heat capacity
∆T = change in temperature
Q = mass x specific heat x change in temperature
Q1 = 1 * 390 * 10 = 3900
Q2 = 1 * 4186 * 10 = 41,860
Q3 = 1 * 840 * 10 = 8,400
Add them all up to get the total energy needed to increase the temperature of the whole set by 10°C.
3900 + 41860 = 45,760
45,760 + 8,400 = 54,160
Therefore, 54,160J is needed to increase the temperature by 10°C.