UNOFFICIAL MARKCHEME - AQA GCSE CHEM PAPER 1 TRIPLE PAPER - BEST PAPER EVER I RECKON I GOT 90/100 - ts was so free I had basically seen all the questions on past papers before😁😁😁- MY ANSWERS BELOW IF YOU WANNA COMPARE 👍
- last question - 0.3552,
- ratio 3:4,
- 480 cm cubed
- metal B due to it forms coloured compounds then A as its group 1 elements due to low density
- For the metals table structureof graphite vs I talked about of graphite is layered and how it forms 3 covalent bonds instead of 4 like diamond
- for characteristics I said it conducts electrictity but it soft and slippery and diamond is hard.
- Barium hydroxide OH- ions neutralise H+ ions in hydrochloric acid, resulting in PH 7
- Mass decreases as hydrogen gas escapes due to the fact it's an open system
- then the sodium oxygen one was fine - 2 sodiums atom reacts wiht 1 oxygen atom, each sodium atom looses 1 electron and oxygen gains 2 electrons, forming Ca+ and O2- ions
grade boundries going hella up.🥀