Challenge: balance the equations below A. ___ NaNO3 + ___ PbO → ___ Pb(NO3)2 + ___ Na2O
B. ___ Ca3P2 + ___ H2O → ___Ca(OH)2 + ___ PH3
C. ___Fe2O3 + ___ CO → ___Fe + ___ CO2
D. ___NH3 + ___ O2 → ___ NO2 + ___ H2O
E. ___FeS + ___O2 → ___Fe2O3 + ___SO2
F. ___ C3H8 + ___ O2 → ___ CO2 + ___ H2O

- decrease the number of plants and animals living in the water.

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

може ли да зареждате повече информация, моля

може ли да зареждате повече информация, моля