Answer:
34.23 grams H2O.
Explanation:
1 Mole of HCl produces 1 mole of water
So 1.9 moles producers 1.9 moles of water
= (2*1.008 + 16) * 1.9
= 18.016 * 1.9
= 34.23 grams H2O.
- A chemical reaction is considered as a process of transformation of chemical reactants into products.
- Chemical reactions involve change in position of electrons or breaking the bonds between atoms to form new molecules. (no change in the elements present).
- Chemical reactions are best described by chemical equations
So the correct answer is B
Answer:
the coefficients are equal
Explanation:
According to Electro-chemical series the metal with more -ve potential will replace the metals below it in series in their salts and tend to oxidize.
A) not occurs since Mg more reactive than Ni (with -ve potential)
B) potential of Al is more -ve than iron so it can replace it in its salt and the reaction can occur spontaneously so
B is the correct answer.
C) Mercury cannot replace Al
D)
Zinc cannot also replace potassium