12. ___ Ga(CN)3 + _Sn(BrO3)2 -> ___ Sn(CN)4 + __ Ga(BrOs);
Balance the reaction above. Use the following format for your 2,0,3,1 (no spaces)

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.