Metals and non-metals react readily with oxygen; Metal oxides, soluble in water to produce metal hy

The metals are elemental metals substances consisting of atoms and are represented by the respective swamp cooler for car chemical symbols. Examples of metals: aluminum (Al), Iron (Fe), calcium (Ca), sodium (Na), potassium (K) and magnesium (Mg).
The oxides formed react with water and produce substances with acidic properties: sulfurous acid and carbonic swamp cooler for car acid. That's why the litmus turns red and phenolphthalein remains colorless.
Metals and non-metals react readily with oxygen; Metal oxides, soluble in water to produce metal hydroxides which are basic solutions, ie metal oxides are basic. Nonmetallic oxides, soluble in water to produce solutions which are acidic acid, or non-metal swamp cooler for car oxides are acidic.
- Elementary substances are formed by the atoms of elements from group 1, ie they have only one valence electron; - Are very reactive; - Easily load originate +1 (monopositivos ions) ions; - Reactivity increases over the group
The reaction of alkali metals with water yields the respective hydroxides. As the solutions of the hydroxides are basic, phenolphthalein becomes swamp cooler for car carmine. During the reaction swamp cooler for car also forms hydrogen gas (responsible for the noise you hear). These reactions can be reflected by the following chemical equations:
- Are elementary substances; - They are quite reactive but less than the alkali metals; - Reactivity increases over - group are formed by atoms of the elements of Group 2; - Ions easily give rise +2 charge, or dipositivos ions; - Have similar chemical properties. For example, when the magnesium and calcium react with water, it was observed swamp cooler for car the formation swamp cooler for car of gas bubbles and color change of phenolphthalein swamp cooler for car carmine for:
Halogens Halogens: - are elementary substances; - Are very reactive; - The reactivity decreases across the group; - Diatomic molecules are formed by elements of group 17; - Easily originate swamp cooler for car -1 charged ions, ie ions mononegativos.
Hello I am Sofia Sofia Carvalho and I attend the 9ºD. I'm doing this blog within the discipline of CFQ and he intend to learn in a fun way and help all who pass by here :) View my complete profile
2012 (14) September (3) October (7) November (3) December (1) 2013 (18) January (1) February (3) March (1) May (2) June (2) October (1) November (2) December (6) Discovering the Periodic Table of Elements Curiosity: History of the Periodic Table Study of the chemical element Bismuth properties of substances and their position in Ta ... chemical bond Happy Holidays! 2014 (18) January swamp cooler for car (2) February (1) March (6) April (2) May (6) July (1)