burgers are cooked on a babecue. the burgers contain saturated fat. unsaturated fats can be monounsaturated or polyunsaturated. a molecule of polyunsaturated fat contains:
more than one double bond
1 of 8
small pieces of charcol burn faster than the same mass of large pieces. this is because small pieces:
have a larger serface area
2 of 8
some oils are reacted with hydrogen to change them into solids. the reaction with hydrogen is:
hydrogenation
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burgers are stored in a fridge to prevent dacay. decay is caused by the action of enzymes. enzymes are:
biological catalysts
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if ethene is bubbled into bromine water, the bromine water will
remain orange
5 of 8
the burgers were in plastic container. plastic can cause enviromental problems because they:
do not rot
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when charcol burns heat is produced. this means the reaction is:
exothermic
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all of the haogens have simular chemical reactions because their atomscontain the same number of
electrons in the outer shell
8 of 8
Other cards in this set
Card 2
Front
small pieces of charcol burn faster than the same mass of large pieces. this is because small pieces:
Back
have a larger serface area
Card 3
Front
some oils are reacted with hydrogen to change them into solids. the reaction with hydrogen is:
Back
Card 4
Front
burgers are stored in a fridge to prevent dacay. decay is caused by the action of enzymes. enzymes are:
Back
Card 5
Front
if ethene is bubbled into bromine water, the bromine water will
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