C1 chemistry game gcse all exam boards

Scroll to see replies

Is it when carbon dioxide from the early atmosphere formed sedimentary rocks or fossil fuels?

Peat Bogs and Limestone are two good examples. How come its bad to destroy peat bogs and to carry out the combustion fossil fuels?

Reply 81

z_o_e

Original post by dausa99

One method is vaporizing the fraction (kerosene) and passing it over a catalyst (Al203) causing it to be broken down into Octane and Ethene

I didn't know if there was another form

Why are there so many theories about how life began?

Posted from TSR Mobile

Reply 82

dausa99

Question: Explain the Electrolysis of Copper... Tough One! :colone:

Reply 83

dausa99

Original post by z_o_e

Why are there so many theories about how life began?

Posted from TSR Mobile

Because no one was around to witness it and we have a lack of evidence for any theories. Do you reckon the primordial soup will come up?

Reply 84

z_o_e

Original post by dausa99

Question: Explain the Electrolysis of Copper... Tough One! :colone:

Electrolysis..

Electric current is passed through the solution of Copper sulphate ( - ion). The positive ion (copper ) is attracted to the negative copper sulphate ion as they are oppositely charged. ( cathode is attracted to the anode),

The copper can be extracted from the cathode.

Posted from TSR Mobile

Reply 85

z_o_e

Original post by dausa99

Question: Explain the Electrolysis of Copper... Tough One! :colone:

Electrolysis..

Electric current is passed through the solution of Copper sulphate ( - ion). The positive ion (copper ) is attracted to the negative copper sulphate ion as they are oppositely charged. ( cathode is attracted to the anode),
The copper can be extracted from the cathode.

Posted from TSR Mobile

Reply 86

z_o_e

Original post by dausa99

Because no one was around to witness it and we have a lack of evidence for any theories. Do you reckon the primordial soup will come up?

Think it will. But they might as us about dead rats 😴

Posted from TSR Mobile

Reply 87

z_o_e

Q) how is phytomining and bio leaching used to extract metal compounds?

Posted from TSR Mobile

Reply 88

dausa99

Original post by z_o_e

Electrolysis..

Electric current is passed through the solution of Copper sulphate ( - ion). The positive ion (copper ) is attracted to the negative copper sulphate ion as they are oppositely charged. ( cathode is attracted to the anode),
The copper can be extracted from the cathode.

Posted from TSR Mobile

The cathode is attracted to the anode? :s-smilie:

Surely, its the Cu2+ ions are attracted to the cathode and the Hydroxide or Sulphate Ions are attracted to the anode since they are - charged?

Reply 89

z_o_e

Original post by dausa99

The cathode is attracted to the anode? :s-smilie:

Surely, its the Cu2+ ions are attracted to the cathode and the Hydroxide or Sulphate Ions are attracted to the anode since they are - charged?

Omgg yes!!

Posted from TSR Mobile

Reply 90

Obnox

What type of bond is between a metal and non-metal

and

What type of bond is between a non-metal and a non-metal

Reply 91

z_o_e

Original post by Obnox

What type of bond is between a metal and non-metal

and

What type of bond is between a non-metal and a non-metal

Ionic
Covalent

Posted from TSR Mobile

Reply 92

Obnox

Original post by z_o_e

Ionic
Covalent

Posted from TSR Mobile

Nice

Reply 93

SunnyBoys

Original post by dausa99

One method is vaporizing the fraction (kerosene) and passing it over a catalyst (Al203) causing it to be broken down into Octane and Ethene

I didn't know if there was another form

you forgot a key part, it's a hot catalyst
the other method:
mixing hydrocarbon vapour and steam at a high temperature

Reply 94

dogg0

Original post by z_o_e

Q) how is phytomining and bio leaching used to extract metal compounds?

Posted from TSR Mobile

Phytomining is when plants are planted in areas where extracting from ores wouldn't be worth it and the plants take in the metal compounds and can't get rid of them so they are stored and then the plants are burnt and metal compounds extracted from the ash. Bio leaching is when bacteria are used to break bonds or something... I'm not sure.

C1 is going to be a total fail it seems...

Reply 95

SunnyBoys

Original post by z_o_e

Q) how is phytomining and bio leaching used to extract metal compounds?

Posted from TSR Mobile

phytomining is when plants are grown over the low grade copper. They absorb the copper and when burnt produces copper compunds as an ash. This can be separated through electrolysis or disillation.

Bio leaching uses bacteria to produce a solution of copper(I think are called leachates) which can then be separated through distillation or electrolysis

These are done often for low grade copper ores when smelting would be too expensive to use as there are not enough high grade ores

Reply 96

dausa99

Original post by z_o_e

Electrolysis..

Electric current is passed through the solution of Copper sulphate ( - ion). The positive ion (copper ) is attracted to the negative copper sulphate ion as they are oppositely charged. ( cathode is attracted to the anode),
The copper can be extracted from the cathode.

Posted from TSR Mobile

N/A it uploaded twice :P

(edited 7 years ago)

Reply 97

z_o_e

Original post by dausa99

N/A it uploaded twice :P

What is the independent and dependant variable?

Posted from TSR Mobile

Reply 98

WillsWheels

Original post by z_o_e

What is the independent and dependent variable?

Posted from TSR Mobile

The Independent variable is a variable which is deliberately changed and the dependent may change when the independent changes (The variable which is being experimented).... I think so anyway