1. 2AgNO3 + BaCl2 --- 2AgCl + Ba(NO3)2
2. 3MgCl2 + 2Na3PO4 --- Mg3(PO4)2 + 6NaCl
3. 2 Fe(OH)3 + 3H2SO4 --- Fe2(SO4)3 + 6H2O
In every chemical reaction of Substance A, the sum of the weights of the products formed is greater than the initial weight of A which undergoes a reaction. Substance X,in turn, undergoes a chemical reaction in which the combined weight of the products is exactly equal to the initial weight of X which reacted. What kind of substances are A and X?Substance A is a pure compound or substance (element or compound)
When we combined Na + Cl₂ ⇒ NaCl
NaCl has a greater mass than Na
NaCl has a greater mass than Cl₂Substance X is a mixture (the substances are just mixed and the chemical constituents stay the same.)
Hope it helps...=)
If 15 ml of alcohol is added to 50 ml of H20. What is the concentration of the solution ?
We have the following information:
% v/v (percentage of volume per volume) = ?
V1 (solute volume) = 15 mL
V (volume of the solution) = solute + solvent = 15 + 50 = 65 mL
We apply the data to the formula of volume percentage of the solute per volume of solution, we will have:
The concentration of the solution is approximately 23%
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