Answer:
Ionic bonds usually occur between metal and nonmetal ions. For example, sodium (Na), a metal, and chloride (Cl), a nonmetal, form an ionic bond to make NaCl.
Explanation:
Answer:
higher, left
Explanation:
Given that the reaction consumes 462 kJ of energy. It means that the reaction is a endothermic reaction.
In the energy profile of the endothermic diagrams, The reactants are at a very low level as compared to the products and hence, energy is supplied to overcome this difference.
Hence, The energy levels of products are <u>higher</u> than the energy level of reactant.
Hence, already stated, heat is required by the reaction and thus heat is written to the reactant side which is to the <u>left</u> side of the equation.
Answer:
animal cells dont have chloroplast
Explanation:
chloroplast is used to produce chlorophyll, only something found in plant cells
Answer:
Explanation:
The valance of magnesium atom is 
While the valence of nitrogen atom is 
Let us first write the first half-reactions
The second half reaction is
Adding the above two reactions and writing the final reaction, we get -
The balance equation is
