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Oxygen
For metals, reactivity increases as we move through the elements in the period table from top to bottom, and left to right. In contrast, for nonmetals, reactivity increases as we move through the elements in the periodic table, as we move from bottom to the top, and right to left.
Group 16 on the periodic table is also called the oxygen family or chalcogens. It includes the following elements from top to bottom: Oxygen, Sulfur, Selenium, Tellurium, and Polonium. Of these, only Oxygen, Sulfur, and Selenium are nonmetals. Since reactivity of nonmetals increases going up the periodic table, oxygen is therefore the most reactive nonmetal in the group. Shown in the figure below is the reactivity trend in the periodic table.
Answer:
6 moles
Explanation:
You have a 1:3 ratio between nitrogen gas and hydrogen gas
Answer:
Stannic fluoride, SnF4
Explanation:
The chemical formula of Barium nitride is Ba(NO3)2.
The chemical formula of Cobaltous chloride is COCl2.
The chemical formula of Sodium Oxide is Na2O.
So the correct one is stannic fluoride, SnF4.
Answer:
Explanation:
There's 2 steps: first find the volume then the mass
volume=lwh
convert 20 cm to mm: 20x10=200mm
volume=(170)(200)(0.99)
volume=33,660 mm
since the density is in cm cubed, convert 33,660 mm to cm
33,660/10=3366
density=mass/volume, rearrange to get mass=density x volume
mass=19.3 x 3366
mass=64963.8