Notes, Pitches, Articulation, Phrasing, and Musical Extras.
Answer: C
Explanation:
This is basic stoichiometry
4.5 X 10^20 Atoms x (1 mole/ 6.02 X 10^23 atoms) = 7.48 X 10^-4 moles Ag
so the answer would be C.
Answer and explanation;
Ions are formed when an atom looses or gains electrons.
-Ionic charges are created when there is an imbalance of protons and electrons on an atom. Since we can not change the number of protons on the nucleus of an atom, a positively charged ion will be created when there are fewer electrons than protons (in other words when an atom looses electron). A negatively charged ion is formed or created when there are more electrons than protons in an atom (when an atom gains electrons).
-When electron are added, you are adding more negative charge and thus, results in the creation of a negative ion (anion), and when electrons are being lost by an atom, one is removing negative charge, resulting in creation of a positive ion (cation).
B) erosion by wind and water
C) eruptions by explosive volcanoes
D) cracking of earths crust by earthquakes
O2 only
MgO only
Mg and O2
Mg only
B.They can only be formed by decay of swamp plants.
C.They take millions of years to form.
D.They can only be formed deep under the sea.
The answer is: C. They take millions of years to form.
Fossil fuel is a fuel formed by anaerobic decomposition of buried dead organisms.
If there was oxygen the organic matter would not decomposed and formed oil and gas, because there would be reaction of oxidation.
The age of the organisms and their resulting fossil fuels is typically millions of years
Fossil fuel is mixture (solution) consist of several different hydrocarbons (alkanes, alkenes...), aromatic compounds.