Write the ionic equation for the following chemical reactions. Include state symbols. Al + H3PO4 --> AlPO4 + H2

Fe2O3 + CO --> Fe + CO2

Mg(OH)2 + H2SO4 --> MgSO4 + H2O

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.