Answer:
Anhydrous calcium chloride dissolves and becomes liquid
Anhydrous copper (ii) sulphate will produce crystal particles
Explanation:
Anhydrous calcium chloride is deliquescent and hence when it is exposed to air, it absorbs water from air. After absorbing water, it dissolves and after some time a pool of clear liquid appears.
Anhydrous copper (ii) sulphate will form crystal structures and the following reaction will takes place
CuSO4 + 5 H20 --> CuSO4.5H2O
D.because the water is needed to wet the sand and keep the reaction safe
Answer:
HBr + KOH = KBr + H2O
3 HF + Fe(OH)3 = FeF3 + 3 H2O
2 HCl + Ca(OH)2 = CaCl2 + 2 H2O
Explanation:
There is a change of decrease in entropy in 3Fe(s) + 202(g) -. Fe 304(g)
There is a decrease in a gaseous molecule, which causes a disorder in the system.
Your answer is: 3Fe(s) + 202(g) -. Fe304(g)
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