Which of the following is not a correct chemical equation for a double displacement reaction? 2rbno3 + bef2 yields be(no3)2 + 2rbf cacl + lico3 yields caco3 + licl na3po4 + 3koh yields 3naoh + k3po4 2mgi2 + mn(so3)2 yields 2mgso3 + mni4

Explanation: A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

In the given reaction:

The molecular formula of Lithium carbonate is incorrect as lithium forms a monovalent cation but carbonate is a divalent polyatomic ion. Thus in order to form a neutral ionic compound two atoms of must combine with one to give

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 potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.