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Natalija [7]
3 years ago
9

Which procedure would best allow a scientist to observe a chemical property of hydrochloric acid (HCI) solution?

Chemistry
2 answers:
makkiz [27]3 years ago
6 0
Effervescence of h2 gas will be produced which burns off a glowing split with a pop sound when hcl reacts with a base
ss7ja [257]3 years ago
4 0

Answer:

Adding a piece of Zn

Explanation:

Adding zinc (Zn) to a hydrochloric (HCl) solution will prove its acidity with a redox reaction:

Zn(s) + 2H^+(aq) \longrightarrow Zn^{+2}(aq) + H_2(g)

This reaction can be confirmed,  by the observation of little bubbles in the surface of the metal: that bubbles are the hydrogen gas generated.

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Lithium sulphate is used in some medicines and its presence in a medicine can be shown by two a combination of two tests a)expla
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6 0
3 years ago
For a phase change, H0 = 2 kJ/mol and A S0 = 0.017 kJ/(K•mol). What are
34kurt

Answer:

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We can find ΔG of a reaction using ΔH, ΔS and absolute temperature with the equation:

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8 0
3 years ago
Identify the combustion reaction. c4h12 + 7o2 ⟶ 6h2o + 4co2 2h2 + o2 ⟶ 2h2o al2s3 ⟶ 2al + 3s cl2 + 2kbr ⟶ 2kcl + br2
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3 years ago
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