What I think is the charge of nucleus is the proton+neutron
I don’t know about 1 But number 2 is AB + xH2O = AB.xH2O
<span>C7H16 + 11O2 ------> 7CO2 + 8H2O
</span><span>C- 7 C- 7
H- 16 H -8*2=16
O -11*2 =22 O - 7*2 +8 =14+8=22</span>
Answer:
make an observation is number one number two is ask a question number three is form a hypothesis number number five isa test the prediction.
