Answer: C
Explanation: i did this before
It would be Atom 2 because the proton and neutron are both nine and the election is 8 which is -1 to nine <span />
Answer:
number three is the answer moderate
melting point because the melting point is the heat required to make an object melt anything less than this poitn will not make the substence melt.
3Zn + 8HNO3 ---> 3Zn(NO3)2 + 4H2O + 2NO IF IT IS COLD AND DILUT NITRIC ACID .
IF IT IS HOT AND CONCENTRATED THEN:
Zn+ 4HNO3 ---> Zn(NO3)2 +2H2O +2NO2
