The question is: look closely at the body systems shown on these pages. then circle the two systems that send messages around the body. : /

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Why do cells appear different in distilled water than they do in 10% salt water?

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.