Answer:
carbon dioxide gas
a. CaCO3 + 2HCl -----> CaCl2 + CO2 + H2O
Use the General Gas Law
PV = nRT => n = PV/ RT
P= <span>10130.0 kPa
V= </span><span>50 L
R= </span><span>R = 8.314 L∙kPa/K∙mol
T= </span><span>300°C + 273 = 573 K
n = </span>10130.0 kPa 50 L / 8.314 L∙kPa/K∙mol <span>573 K
n = </span><span>106.32 mol</span>
The chemical bonds in CH4 are all single bonds. C only can bond 4 times because it needs 8 electrons in it's outer shell and only has four right now. The bonds represented are all single bonds because there are two electrons present on each side of the carbon. Two electrons, in this case, equals one bond.
Principal energy levels describe regions of space where electrons may be found.
the greater the average distance from the nucleus.
The principal energy level of an electron is the shell or orbit in which the electron resides with respect to the nucleus. This level is represented by the principal quantum number n.
The principal quantum number n represents the total relative energy of each orbit. The energy level of each orbit increases as the distance from the nucleus increases. A set of orbitals with the same n value is often called the electron shell.
Only seven energy levels are required to contain all the electrons in any atom of any currently known element. As mentioned earlier, the energy associated with the energy level increases as the distance from the nucleus increases.
Learn more about Principal energy here:brainly.com/question/14361631
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Answer:
Oxygen can get into the water in several ways: Oxygen from the atmosphere dissolves and mixes into the water's surface. Algae and underwater grasses release oxygen during photosynthesis. Water flows into the Bay from streams, rivers and the ocean.
Explanation: