If a piece of zinc is added to sulphuric acid, an exothermic reaction occurs. The speed of reaction increases during the first few seconds because a. The reaction mixture is getting hotter.
b. The amount of zinc is decreasing.
c. the Zn+2 ions produced act as a catalyst.
d. the concentration of sulphuric acid is increasing.

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .