26. Subtract an e - for each positive charge. Add an e - for each negative charge.
27.
28.
29.
30.
31.
32.
33.
Notas do Editor
Oxygen and nitrogen are the main components of Earth’s atmosphere. The oxygen molecule is an exception to the octet rule. It has two unpaired electrons. Three pairs of electrons are shared in a nitrogen molecule.
Oxygen and nitrogen are the main components of Earth’s atmosphere. The oxygen molecule is an exception to the octet rule. It has two unpaired electrons. Three pairs of electrons are shared in a nitrogen molecule.
Carbon dioxide gas is soluble in water and is used to carbonate many beverages. A carbon dioxide molecule has two carbon–oxygen double bonds.
Oxygen and nitrogen are the main components of Earth’s atmosphere. The oxygen molecule is an exception to the octet rule. It has two unpaired electrons. Three pairs of electrons are shared in a nitrogen molecule.
Oxygen and nitrogen are the main components of Earth’s atmosphere. The oxygen molecule is an exception to the octet rule. It has two unpaired electrons. Three pairs of electrons are shared in a nitrogen molecule.
The polyatomic ammonium ion (NH4), present in ammonium sulfate, is an important component of fertilizer for field crops, home gardens, and potted plants.
Although ozone high above the ground forms a protective layer that absorbs ultraviolet radiation from the sun, at lower elevations ozone is a pollutant that contributes to smog.
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