In which of the following cases a chemical reaction will occur? A) Ag + HCI
C) 0,+ KMnO,
B) Zn(OH)2 + NaOH
E) KBr + 12
D) NaCl + Brz

is there multiple choice answers?

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.