B) less
As if the atom has more electrons than protons it is negatively charged
To find the actual volume you need to subtract 68.2 and 56.3 which would be 11.9 ml. density is mass divided by volume so 31.18 g/11.9 is equal to 2.62 g
<em>if u mix them ammonia will react with H2o2 to give N2 </em>
<em>since N2 is highly stable a lot of energy will be released in the reaction. </em>
<em>Hence the reaction will be explosive </em>
magma is the lava before it comes out of the earth so the answer is rocks being pushed into the mantle and melting hope I was helpful