<span>The correct answer is Matt is most likely a nuclear scientist because </span><span><span>a nuclear scientist is a physicist who studies how to harvest energy from atomic nuclei. This energy is used for purposes such as fuel, medicine and electricity. </span> </span>
percentage of zinc= 5.985/20 X 100= 29.5%
let x represents zinc and y be magnesium so
Zinc(s) + 2HCl(aq) -----> ZnCl2(aq) + H2(g)
Mg(s) + 2HCl(aq) -----> MgCl2(aq) + H2(g)
1.152 g of hydrogen gas=( x/65.3 + y/24.305) 20
= 3.08 x10^-2 + 0.8295-8.30
=x=5.985
y= 4.015
percentage of zinc= 5.985/20 X 100= 29.5%
The hydrogen gas escapes, so the two products of Zinc Chloride and Magnesium Chloride will then react with Silver Nitrate. Again, I combine both of the reactions
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Answer: The charge on a sulfide ion is –2.
Explanation:
Answer:
Kₐ = 9.9 × 10⁻³
Explanation:
HClO₂ + H₂O ⇌ H₃O⁺ + ClO₂⁻
0.080 × 1.43 = 0.1144
So, at equilibrium,
[H₃O⁺] = [ClO₂⁻] = 0.1144
[HClO₂] = 1.43 – 0.1144 = 1.316
Kₐ = {[H₃O⁺][ClO₂⁻]}/[HClO₂]; Substitute values
Kₐ = (0.1144 × 0.1144)/1.316 Do the operations
Kₐ = 9.9 × 10⁻³
