100 points to right !
kate gathered three boxes of the same size made of different materials...
100 points to right !
kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. she placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box. which of the following best describes the purpose of the experiment?
a)to relate the amount of time a box is exposed to sunlight to the warmth of air within the box
b)to relate the size of the box to the warmth of air within the box
c)to relate the type of box material to the warmth of air within the box
d)to relate the type of box material to the mass of the box
Answers: 1
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With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals
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Drag the tiles to the correct locations. each tile can be used more than once, but not all tiles will be used. one or more locations will remain empty. nitrosyl fluoride has the chemical formula nof nitrogen has five valence electrons, oxygen has six, and fluorine has seven. complete the lewis structure for this covalent compound. f n = = = . : : 0 : reset next um. all rights reserved us 2
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