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Chemistry 101 > Chapter Z - Chapter 17 > Flashcards

Chapter Z - Chapter 17 Flashcards

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1
Q

What are the two reactions that happen when potassium bromine reacts with sulfuric acid?

A

KBr + H2SO4 -> KHSO4 + HBr

2HBr + H2SO4 -> Br2 + SO2+ 2H2O

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2
Q

Write down the reaction of chlorine with hot NaOH

A

6NaOH + 3Cl2 -> 5NaCl + NaClO3 + 3H2O

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3
Q

Write down the reaction of chlorine with cold NaOH

A

2NaOH + Cl2 -> NaCl + NaClO + H2O

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4
Q

What color is silver iodide?

A

yellow

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5
Q

What color is silver bromide?

A

cream

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6
Q

what color is silver chloride?

A

white

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7
Q

What’s the effect of adding dilute ammonia to silver chloride?

A

ppt. dissolves

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8
Q

What’s the effect of adding concentrated ammonia to silver chloride?

A

ppt. dissolves

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9
Q

What’s the effect of adding dilute ammonia to silver bromide?

A

ppt. remains insoluble

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10
Q

What’s the effect of adding concentrated ammonia to silver bromide?

A

ppt. dissolves

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11
Q

What’s the effect of adding concentrated ammonia to silver iodide?

A

ppt. remains insoluble

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12
Q

What are the products of a reaction of a halogen with sulphuric acid?

A

sulfate salt and hydrogen halide

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13
Q

Which halide react in two reaction with sulphuric acid?

A

bromine

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14
Q

Which hydrogen halide reacts in three different ways with sulphuric acid?

A

Iodine

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15
Q

What are the products of bromide’s second reaction with sulphuric acid?

A

bromine, sulphur dioxide and water

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16
Q

what are the three different products of the reaction of hydrogen iodide with sulphuric acid?

A
  1. iodine, sulfur, water
  2. iodine, sulfur dioxide, water
  3. iodine, hydrogen sulfide (H2S), water
17
Q

what is the observation seen when HCl is formed?

A

white fumes

18
Q

what is the observation seen when bromine is formed?

A

reddish brown gas

19
Q

what is the observation seen when iodine is formed?

A

violet/purple vapour

20
Q

what is the observation seen when sulfur is formed?

A

yellow sulfur solid

21
Q

what is the observation seen when hydrogen sulfide (H2S) is formed?

A

rotten smell

22
Q

What is the trend of strength of oxidising agents in group 17?

A

strength of oxidation decreases as you go down group.

23
Q

What’s the strength of reactivity in group 17?

A

reactivity decreases as you go down group

24
Q

Write the equation for silver chloride’s reaction with ammonia

A

AgCl(s) + 2NH3(aq) Ag[(NH3)2]+(aq) + Cl-(aq)

Chemistry 101 (9 decks)

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