Sodium has the atomic number 11. how many electrons are in a sodium ion, which has the symbol na+?

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowingextra gills, for oxygen extractionthe ability to grow largerextra fat, for warmth

Drag each label to the correct location on the chart. match the function to the type of tissue