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use what you leamed about the charactenstics of all to choose the correct answers from the drop dow
denby is the amount of mass in a certain volume
a
results from a column of ait pushing on an area
a measure of how tightly a molecules are packed together is called

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ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.