1
Q
are longer or shorter alkanes more useful
A
shorter
2
Q
how do we make longer alkanes shorter
A
cracking
3
Q
conditions of cracking
A
- temperature of 650 degree celsius
- catalyst aluminium oxide (Al2O3)
(can be conducted without a catalyst but far more energy would need to be provided)
4
Q
products of cracking:
A
long alkane -> short alkane + alkene
chemistry
flashcards
Decks in class (57)
# Cards
-
3.1.1 - chemicals and observations32
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3.1.2 - kinetic theory11
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3.1.3 - pure substance31
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3.1.4 - mixtures22
-
3.1.5 - metal carbonate decomposition4
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3.2.1 - particle numbers16
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3.2.2 - electrons5
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3.2.3 - ion formation13
-
3.2.4 - ionic formulae7
-
3.2.5 - ionic structure and bonding4
-
3.2.6 - ionic properties5
-
3.3.1 - metal structure, bonding and properties14
-
3.3.2 - metal reactivity and displacement reactions7
-
3.4.4 - acid + metal reaction5
-
3.3.4 - metal extraction11
-
3.3.5 - iron, steel and other metals8
-
3.4.1 - acids, bases and alkalis23
-
3.4.2 - acid + base reaction5
-
3.4.3 - making soluble salts8
-
3.4.4 - making insoluble salts3
-
3.4.6 - acid + carbonate reaction2
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4.1.1 - covalent bonding3
-
4.1.2 - simple molecular substances7
-
4.1.3 - giant covalent substances14
-
4.1.4 - bonding summary9
-
4.2.1 - group 7 elements15
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4.2.2 - halogen displacements7
-
4.3.1 - collision theory13
-
4.3.2 - effect of concentration/pressure7
-
4.3.3 - effect of surface area5
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4.3.4 - effect of temperature5
-
4.3.5 - effect of catalysts7
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4.4.1 - relative formula mass5
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4.4.2 - moles4
-
4.4.3 - mole ratios in formulae12
-
4.4.4 - mole ratios in equations7
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4.5.1 - crude oil18
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4.5.2 - alkanes24
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4.5.3 - cracking4
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4.5.4 - alkenes19
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5.2.3 - gas tests7
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5.2.4 - cation tests14
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5.2.5 - anion tests7
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4.6.5 - chromotography5
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5.1.1 - gas volumes6
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5.1.2 - concentration calculations3
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5.1.3 - titration10
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5.2.1 - enthalpy changes8
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5.2.2 - bond breaking and making9
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5.2.3 - calorimity9
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5.3.1 - alcohols23
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5.3.2 - carboxylic acids13
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5.3.3 - esters8
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5.3.4 - polyesters5
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5.4.1 - electrolysis of molten compounds15
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5.4.2 - electrolysis of aqueous compounds7
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dynamic equilibrium19
