The moon, man has not been to mars yet
A solution is a homogenous mixture of two or more substances. A solute is a substance that dissolves. A solvent is a substance in which other substances dissolve in. Using these definitions above the answer will hence be choice number 4. solvent;solute;solution.
Answer:
Explanation:
Combination Reaction: is a reaction that occurs when two or more reactants combine to form a single new products. The reactants can either be Elements or Compounds. It does not require heat during the reaction.
A + B ---------> C
C (s) + O2 (g) ----------> CO2 (g)
CaO (s) + H2O (l) ---------> Ca(OH)2 (s)
In this reaction, energy is released.
Decomposition Reaction: is a reaction that occurs when a a single reactant is broken down to form two or more products. Application of heat is usually required in this type of reaction.
Δ
AB ---------> C + D
Δ
CaCO3 (s) --------> CaO (s) + CO2 (g)
In this reaction, energy is absorbed.
By providing an alternative reaction<span>mechanism with a lower activation energy.</span>
