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Alkalines are named because they produce strong bases (or alkalis) that neutralize acids after reacting with water. They are of very low density and good conductors of heat and electricity. They are n ...
The alkaline earths take their name from the one who received their oxides, "earths", which have alkaline properties. They are harder than alkali metals, have shine and are good electrical c ...
Locate each of the muscles of the human body in the game. Drag and drop the pieces of this game in the right place.
On mobile you can zoom in or out of the game and adjust the size to the screen of you ...
Locate each of the muscles of the human body in the game. Drag and drop the pieces of this game in the right place.
On mobile you can zoom in or out of the game and adjust the size to the screen of you ...
Alkalines are named because they produce strong bases (or alkalis) that neutralize acids after reacting with water. They are of very low density and good conductors of heat and electricity. They are n ...
Following a classification according to the bonding and ionization properties of the elements, the elements of the periodic table can be classified as:
Alkalines
Alkaline earth
Transition metals
O ...
The periodic table of the elements is the way proposed by Dmitri Mendeléyev in 1869 to arrange the chemical elements, which are ordered by their atomic number, their electron configuration and ...
The noble gases are a group of monoatomic, odorless, colorless chemical elements and have a very low chemical reactivity. Pierre Janssen and Joseph Norman Lockyer were the first to discover, in the 19 ...
Learn with this interactive game the human ear components. You have to choose the right answer from a list of several options.Zoom in or zoom out the image in order to adjust it to the size of your d ...
Learn with this interactive game the human mouth parts. You have to choose the right answer from a list of several options.Zoom in or zoom out the image in order to adjust it to the size of your desk ...
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