Hence 2.107 x 10^23 atoms are present in 41.7 g of tin(Sn).
Mass of 2.37 x 10^22 atoms of Xe is 5.12031 g.
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Answer:
HCl is reduced and is the oxidizing agent
Explanation:
Looking at the reaction shown in the question
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
HCl is reduced to H2. The oxidation number of hydrogen decreased from +1 to zero. While magnesium was oxidized. Its oxidation number increased from zero to +2.
Hence we can rightly say that HCl was the oxidizing agent since the oxidizing agent is reduced in a reaction and the reducing agent is oxidized in a reaction.
Answer: 25.89g of O2 (g)
Explanation:
We begin by finding the molar mass of compounds of interest in the given equation. 2 KClO3 ⟶ 2 KCl + 3 O 2
1 mole of KCLO3 = 39 .10 + 35.5 + (3x16) = 122.55g, 2Moles would be 2 x 122.5 = 245.1g
1 mole Oxygen gas = 32g, 3 moles would be, 3 x 32= 96g
According to the equation;
245.1g of KCLO3 produces 96g of O2 (g)
If 1g of KCLO3 produces 96÷245.1 of O2 (g) from heating.
66.1g of KCLO3 would produce; 96÷245.1 x 66.1 = 25.89g of O2 (g) from heating.
Answer:
Explanation:
pH= 7 is neutral, pH<7 - acidic solutions,
pH>7 - basic solution.
The more value of pH, the more basic solution is.
So, the solution with pH = 12 is more basic.