Year 7 Chemistry Test Unit 1 January 22

Question 1

𝚂𝚘𝚕𝚒d

Answer 1

𝚃𝚑𝚎 𝚙𝚊𝚛𝚝𝚒𝚌𝚕𝚎𝚜 𝚊𝚛𝚎 𝚙𝚊𝚌𝚔𝚎𝚍 𝚝𝚒𝚐𝚑𝚝𝚕𝚢 𝚝𝚘𝚐𝚝𝚑𝚎𝚛 𝚊𝚗𝚍 𝚝𝚑𝚎𝚢 𝚊𝚛𝚎 𝚕𝚘𝚌𝚔𝚎𝚍 𝚒𝚗𝚝𝚘 𝚙𝚘𝚜𝚒𝚝𝚒𝚘𝚗 𝚋𝚞𝚝 𝚝𝚑𝚎𝚢 𝚜𝚝𝚒𝚕𝚕 𝚟𝚒𝚋𝚛𝚊𝚝𝚎.

• 𝚑𝚘𝚕𝚍𝚜 𝚒𝚝𝚜 𝚜𝚑𝚊𝚙𝚎 - 𝚌𝚊𝚗𝚗𝚘𝚝 𝚋𝚎 𝚌𝚘𝚖𝚙𝚛𝚎𝚜𝚜𝚎𝚍 - 𝚍𝚘𝚎𝚜 𝚗𝚘𝚝 𝚏𝚕𝚘𝚠 -

Question 2

𝙻𝚒𝚚𝚞𝚒𝚍

Answer 2

𝚃𝚑𝚎 𝚙𝚊𝚛𝚝𝚒𝚌𝚕𝚎𝚜 𝚊𝚛𝚎 𝚌𝚕𝚘𝚜𝚎 𝚝𝚘 𝚎𝚊𝚌𝚑 𝚘𝚝𝚑𝚎𝚛 𝚋𝚞𝚝 𝚝𝚑𝚎𝚢 𝚌𝚊𝚗 𝚜𝚕𝚒𝚙 𝚊𝚗𝚍 𝚜𝚕𝚒𝚍𝚎 𝚊𝚛𝚘𝚞𝚗𝚍

• 𝚝𝚊𝚔𝚎𝚜 𝚜𝚑𝚊𝚙𝚎 𝚘𝚏 𝚌𝚘𝚗𝚝𝚊𝚒𝚗𝚎𝚛 - 𝚗𝚘𝚝 𝚌𝚘𝚖𝚙𝚛𝚎𝚜𝚜𝚎𝚍 𝚎𝚊𝚜𝚒𝚕𝚢 - 𝚒𝚝 𝚌𝚊𝚗 𝚏𝚕𝚘𝚠 -

Question 3

𝙶𝚊𝚜

Answer 3

𝙿𝚊𝚛𝚝𝚒𝚌𝚕𝚎𝚜 𝚊𝚛𝚎 𝚖𝚘𝚟𝚒𝚗𝚐 𝚚𝚞𝚒𝚌𝚔𝚕𝚢 𝚊𝚗𝚍 𝚑𝚊𝚟𝚎 𝚕𝚘𝚝𝚜 𝚘𝚏 𝚜𝚙𝚊𝚌𝚎 𝚋𝚎𝚝𝚠𝚎𝚎𝚗 𝚝𝚑𝚎𝚖

• 𝚝𝚊𝚔𝚎𝚜 𝚜𝚑𝚊𝚙𝚎 𝚘𝚏 𝚌𝚘𝚗𝚝𝚊𝚒𝚗𝚎𝚛 - 𝚌𝚘𝚖𝚙𝚛𝚎𝚜𝚜𝚎𝚍 𝚎𝚊𝚜𝚒𝚕𝚢 - 𝚒𝚝 𝚌𝚊𝚗 𝚏𝚕𝚘𝚠 -

Question 4

𝙲𝚑𝚊𝚗𝚐𝚒𝚗𝚐 𝚜𝚝𝚊𝚝𝚎

Answer 4

𝚂𝚘𝚕𝚒𝚍 → 𝙻𝚒𝚚𝚞𝚒𝚍: 𝙼𝚎𝚕𝚝𝚒𝚗𝚐

𝙻𝚒𝚚𝚞𝚒𝚍 → 𝙶𝚊𝚜: 𝙴𝚟𝚊𝚙𝚘𝚛𝚊𝚝𝚒𝚗𝚐/𝚋𝚘𝚒𝚕𝚒𝚗𝚐

𝙻𝚒𝚚𝚞𝚒𝚍 → 𝚂𝚘𝚕𝚒𝚍: 𝙵𝚛𝚎𝚎𝚣𝚒𝚗𝚐

𝙶𝚊𝚜 → 𝙻𝚒𝚚𝚞𝚒𝚍: 𝙲𝚘𝚗𝚍𝚎𝚗𝚜𝚒𝚗𝚐

𝚂𝚘𝚕𝚒𝚍 → 𝙶𝚊𝚜: 𝚂𝚞𝚋𝚕𝚒𝚖𝚒𝚗𝚐

Question 5

𝙱𝚛𝚘𝚠𝚗𝚒𝚊𝚗 𝙼𝚘𝚝𝚒𝚘𝚗

Answer 5

𝚃𝚑𝚎 𝚛𝚊𝚗𝚍𝚘𝚖 𝚖𝚘𝚟𝚎𝚖𝚎𝚗𝚝 𝚘𝚏 𝚖𝚒𝚌𝚛𝚘𝚜𝚌𝚘𝚙𝚒𝚌 𝚙𝚊𝚛𝚝𝚒𝚌𝚕𝚎𝚜 𝚜𝚞𝚜𝚙𝚎𝚗𝚍𝚎𝚍 𝚒𝚗 𝚊 𝚕𝚒𝚚𝚞𝚒𝚍 𝚘𝚛 𝚐𝚊𝚜, 𝚌𝚊𝚞𝚜𝚎𝚍 𝚋𝚢 𝚌𝚘𝚕𝚕𝚒𝚜𝚒𝚘𝚗𝚜 𝚠𝚒𝚝𝚑 𝚖𝚘𝚕𝚎𝚌𝚞𝚕𝚎𝚜 𝚘𝚏 𝚝𝚑𝚎 𝚜𝚞𝚛𝚛𝚘𝚞𝚗𝚍𝚒𝚗𝚐 𝚖𝚎𝚍𝚒𝚞𝚖

Question 6

𝙱𝚘𝚒𝚕𝚒𝚗𝚐 𝙿𝚘𝚒𝚗𝚝

Answer 6

𝚃𝚑𝚎 𝚝𝚎𝚖𝚙𝚎𝚛𝚊𝚝𝚞𝚛𝚎 𝚊𝚝 𝚠𝚑𝚒𝚌𝚑 𝚊 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎 𝚌𝚑𝚊𝚗𝚐𝚎𝚜 𝚏𝚛𝚘𝚖 𝚊 𝚕𝚒𝚚𝚞𝚒𝚍 𝚝𝚘 𝚊 𝚐𝚊𝚜

Question 7

𝙼𝚎𝚕𝚝𝚒𝚗𝚐 𝙿𝚘𝚒𝚗𝚝

Answer 7

𝚃𝚑𝚎 𝚝𝚎𝚖𝚙𝚎𝚛𝚊𝚝𝚞𝚛𝚎 𝚊𝚝 𝚠𝚑𝚒𝚌𝚑 𝚊 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎 𝚌𝚑𝚊𝚗𝚐𝚎𝚜 𝚏𝚛𝚘𝚖 𝚊 𝚜𝚘𝚕𝚒𝚍 𝚒𝚗𝚝𝚘 𝚕𝚒𝚚𝚞𝚒𝚍

Question 8

𝙴𝚟𝚊𝚙𝚘𝚛𝚊𝚝𝚒𝚘𝚗 (𝚌𝚑𝚊𝚗𝚐𝚎 𝚘𝚏 𝚜𝚝𝚊𝚝𝚎)

Answer 8

𝚃𝚑𝚎 𝚙𝚛𝚘𝚌𝚎𝚜𝚜 𝚋𝚢 𝚠𝚑𝚒𝚌𝚑 𝚊 𝚕𝚒𝚚𝚞𝚒𝚍 𝚒𝚜 𝚌𝚘𝚗𝚟𝚎𝚛𝚝𝚎𝚍 𝚒𝚗𝚝𝚘 𝚐𝚊𝚜

Question 9

𝙲𝚘𝚗𝚍𝚎𝚗𝚜𝚊𝚝𝚒𝚘𝚗

Answer 9

𝚃𝚑𝚎 𝚙𝚛𝚘𝚌𝚎𝚜𝚜 𝚋𝚢 𝚠𝚑𝚒𝚌𝚑 𝚊 𝚐𝚊𝚜 𝚒𝚜 𝚌𝚘𝚗𝚟𝚎𝚛𝚝𝚎𝚍 𝚒𝚗𝚝𝚘 𝚊 𝚕𝚒𝚚𝚞𝚒𝚍

Question 10

𝚂𝚝𝚊𝚝𝚎 𝚘𝚏 𝚖𝚊𝚝𝚝𝚎𝚛

Answer 10

𝙳𝚎𝚜𝚌𝚛𝚒𝚋𝚎𝚜 𝚠𝚑𝚎𝚝𝚑𝚎𝚛 𝚊 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎 𝚒𝚜 𝚊 𝚜𝚘𝚕𝚒𝚍, 𝚕𝚒𝚚𝚞𝚒𝚍 𝚘𝚛 𝚊 𝚐𝚊𝚜

Question 11

𝙳𝚒𝚏𝚏𝚞𝚜𝚒𝚘𝚗

Answer 11

𝚃𝚑𝚎 (𝚗𝚎𝚝) 𝚖𝚘𝚟𝚎𝚖𝚎𝚗𝚝 𝚘𝚏 𝚙𝚊𝚛𝚝𝚒𝚌𝚕𝚎𝚜 𝚏𝚛𝚘𝚖 𝚊 𝚛𝚎𝚐𝚒𝚘𝚗 𝚘𝚏 𝚑𝚒𝚐𝚑 𝚌𝚘𝚗𝚌𝚎𝚗𝚝𝚛𝚊𝚝𝚒𝚘𝚗 𝚝𝚘 𝚊 𝚛𝚎𝚐𝚒𝚘𝚗 𝚘𝚏 𝚕𝚘𝚠 𝚌𝚘𝚗𝚌𝚎𝚗𝚝𝚛𝚊𝚝𝚒𝚘𝚗

Question 12

𝙵𝚒𝚕𝚝𝚛𝚊𝚝𝚒𝚘𝚗

Answer 12

𝚃𝚑𝚎 𝚙𝚛𝚘𝚌𝚎𝚜𝚜 𝚞𝚜𝚎𝚍 𝚝𝚘 𝚜𝚎𝚙𝚊𝚛𝚊𝚝𝚎 𝚒𝚗𝚜𝚘𝚕𝚞𝚋𝚕𝚎 𝚜𝚘𝚕𝚒𝚍𝚜 𝚏𝚛𝚘𝚖 𝚕𝚒𝚚𝚞𝚒𝚍𝚜

Question 13

𝙳𝚒𝚜𝚝𝚒𝚕𝚕𝚊𝚝𝚒𝚘𝚗

Answer 13

𝚃𝚑𝚎 𝚜𝚎𝚙𝚊𝚛𝚊𝚝𝚒𝚘𝚗 𝚘𝚏 𝚊 𝚜𝚘𝚕𝚒𝚍 𝚏𝚛𝚘𝚖 𝚊 𝚕𝚒𝚚𝚞𝚒𝚍 𝚠𝚑𝚎𝚛𝚎 𝚝𝚑𝚎 𝚕𝚒𝚚𝚞𝚒𝚍 𝚒𝚜 𝚌𝚘𝚕𝚕𝚎𝚌𝚝𝚎𝚍

Question 14

𝙴𝚟𝚊𝚙𝚘𝚛𝚊𝚝𝚒𝚘𝚗 (𝚂𝚎𝚙𝚊𝚛𝚊𝚝𝚒𝚘𝚗 𝚃𝚎𝚌𝚑𝚗𝚒𝚚𝚞𝚎)

Answer 14

𝚃𝚑𝚎 𝚙𝚛𝚘𝚌𝚎𝚜𝚜 𝚞𝚜𝚎𝚍 𝚝𝚘 𝚜𝚎𝚙𝚊𝚛𝚊𝚝𝚎 𝚜𝚘𝚕𝚞𝚋𝚕𝚎 𝚜𝚘𝚕𝚒𝚍𝚜 𝚊𝚗𝚍 𝚕𝚒𝚚𝚞𝚒𝚍𝚜

Question 15

𝙲𝚑𝚛𝚘𝚖𝚘𝚝𝚘𝚐𝚛𝚊𝚙𝚑𝚢

Answer 15

𝚂𝚎𝚙𝚊𝚛𝚊𝚝𝚎𝚜 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎𝚜 𝚘𝚏 𝚟𝚊𝚛𝚒𝚊𝚋𝚕𝚎 𝚜𝚘𝚕𝚞𝚋𝚒𝚕𝚒𝚝𝚢

Question 16

𝚂𝚘𝚕𝚟𝚎𝚗𝚝

Answer 16

𝙰 𝚕𝚒𝚚𝚞𝚒𝚍 𝚠𝚑𝚒𝚌𝚑 𝚌𝚊𝚗 𝚋𝚎 𝚞𝚜𝚎𝚍 𝚝𝚘 𝚍𝚒𝚜𝚜𝚘𝚕𝚟𝚎 𝚝𝚑𝚒𝚗𝚐𝚜

Question 17

𝙵𝚒𝚕𝚝𝚛𝚊𝚝𝚎

Answer 17

𝚃𝚑𝚎 𝚕𝚒𝚚𝚞𝚒𝚍 𝚠𝚑𝚒𝚌𝚑 𝚑𝚊𝚜 𝚙𝚊𝚜𝚜𝚎𝚍 𝚝𝚑𝚛𝚘𝚞𝚐𝚑 𝚊 𝚏𝚒𝚕𝚝𝚎𝚛 𝚙𝚊𝚙𝚎𝚛

Question 18

𝙳𝚒𝚜𝚝𝚒𝚕𝚕𝚊𝚝𝚎

Answer 18

𝚃𝚑𝚎 𝚕𝚒𝚚𝚞𝚒𝚍 𝚠𝚑𝚒𝚌𝚑 𝚒𝚜 𝚌𝚘𝚕𝚕𝚎𝚌𝚝𝚎𝚍 𝚊𝚏𝚝𝚎𝚛 𝚍𝚒𝚜𝚝𝚒𝚕𝚕𝚊𝚝𝚒𝚘𝚗

Question 19

𝚂𝚘𝚕𝚞𝚝𝚎

Answer 19

𝙰 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎 (𝚜𝚘𝚕𝚒𝚍, 𝚕𝚒𝚚𝚞𝚒𝚍 𝚘𝚛 𝚐𝚊𝚜) 𝚠𝚑𝚒𝚌𝚑 𝚍𝚒𝚜𝚜𝚘𝚕𝚟𝚎𝚜 𝚒𝚗 𝚊 𝚜𝚘𝚕𝚟𝚎𝚗𝚝

Question 20

𝙸𝚗𝚜𝚘𝚕𝚞𝚋𝚕𝚎

Answer 20

A substance which does not dissolve in a solvent

Question 21

𝚂𝚘𝚕𝚞𝚝𝚒𝚘𝚗

Answer 21

𝙰 𝚙𝚊𝚛𝚝𝚒𝚌𝚞𝚕𝚊𝚛 𝚝𝚢𝚙𝚎 𝚘𝚏 𝚖𝚒𝚡𝚝𝚞𝚛𝚎 𝚒𝚗 𝚠𝚑𝚒𝚌𝚑 𝚘𝚗𝚎 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎 𝚒𝚜 𝚌𝚘𝚖𝚙𝚕𝚎𝚝𝚎𝚕𝚢 𝚍𝚒𝚜𝚜𝚘𝚕𝚟𝚎𝚍 𝚒𝚗 𝚊𝚗𝚘𝚝𝚑𝚎𝚛 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎 (𝙰 𝚜𝚘𝚕𝚞𝚝𝚒𝚘𝚗 𝚒𝚜 𝙰𝙻𝚆𝙰𝚈𝚂 𝙲𝙻𝙴𝙰𝚁 𝚋𝚞𝚝 𝚖𝚊𝚢 𝚋𝚎 𝚌𝚘𝚕𝚘𝚞𝚛𝚎𝚍)

Question 22

𝙳𝚒𝚜𝚜𝚘𝚕𝚟𝚒𝚗𝚐

Answer 22

𝚃𝚑𝚎 𝚙𝚛𝚘𝚌𝚎𝚜𝚜 𝚘𝚏 𝚊 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎 𝚖𝚒𝚡𝚒𝚗𝚐 𝚠𝚒𝚝𝚑 𝚊 𝚕𝚒𝚚𝚞𝚒𝚍 𝚝𝚘 𝚕𝚎𝚊𝚟𝚎 𝚊 𝚌𝚕𝚎𝚊𝚛 𝚜𝚘𝚕𝚞𝚝𝚒𝚘𝚗

Question 23

𝚁𝚎𝚜𝚒𝚍𝚞𝚎

Answer 23

𝚃𝚑𝚎 𝚜𝚘𝚕𝚒𝚍 𝚠𝚑𝚒𝚌𝚑 𝚌𝚘𝚕𝚕𝚎𝚌𝚝𝚜 𝚒𝚗 𝚏𝚒𝚕𝚝𝚎𝚛 𝚙𝚊𝚙𝚎𝚛

Question 24

𝙿𝚑𝚢𝚜𝚒𝚌𝚊𝚕 𝚌𝚑𝚊𝚗𝚐𝚎𝚜

Answer 24

𝙽𝚘 𝚗𝚎𝚠 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎𝚜 𝚊𝚛𝚎 𝚖𝚊𝚍𝚎

𝚃𝚑𝚎𝚢 𝚌𝚊𝚗 𝚋𝚎 𝚎𝚊𝚜𝚒𝚕𝚢 𝚛𝚎𝚟𝚎𝚛𝚜𝚎𝚍

Question 25

𝙲𝚑𝚎𝚖𝚒𝚌𝚊𝚕 𝚌𝚑𝚊𝚗𝚐𝚎𝚜

Answer 25

𝙽𝚎𝚠 𝚜𝚞𝚋𝚜𝚝𝚊𝚗𝚌𝚎𝚜 𝚊𝚛𝚎 𝚖𝚊𝚍𝚎

𝙽𝚘𝚝 𝚎𝚊𝚜𝚒𝚕𝚢 𝚛𝚎𝚟𝚎𝚛𝚜𝚎𝚍

Question 26

(𝚀𝚞𝚎𝚜𝚝𝚒𝚘𝚗: 𝙿𝚑𝚢𝚜𝚒𝚌𝚊𝚕 𝚘𝚛 𝚌𝚑𝚎𝚖𝚒𝚌𝚊𝚕 𝚌𝚑𝚊𝚗𝚐𝚎) 𝙰𝚗 𝚒𝚌𝚎 𝚌𝚞𝚋𝚎 𝚖𝚎𝚕𝚝𝚜 𝚒𝚗 𝚝𝚑𝚎 𝚜𝚞𝚗 𝚊𝚗𝚍 𝚝𝚞𝚛𝚗𝚜 𝚒𝚗𝚝𝚘 𝚠𝚊𝚝𝚎𝚛

Answer 26

𝙿𝚑𝚢𝚜𝚒𝚌𝚊𝚕

Question 27

(𝚀𝚞𝚎𝚜𝚝𝚒𝚘𝚗: 𝙿𝚑𝚢𝚜𝚒𝚌𝚊𝚕 𝚘𝚛 𝚌𝚑𝚎𝚖𝚒𝚌𝚊𝚕 𝚌𝚑𝚊𝚗𝚐𝚎) 𝙼𝚒𝚕𝚔 𝚝𝚞𝚛𝚗𝚜 𝚜𝚘𝚞𝚛

Answer 27

𝙲𝚑𝚎𝚖𝚒𝚌𝚊𝚕

Question 28

(𝚀𝚞𝚎𝚜𝚝𝚒𝚘𝚗: 𝙿𝚑𝚢𝚜𝚒𝚌𝚊𝚕 𝚘𝚛 𝚌𝚑𝚎𝚖𝚒𝚌𝚊𝚕 𝚌𝚑𝚊𝚗𝚐𝚎) 𝚃𝚞𝚛𝚗𝚒𝚗𝚐 𝚋𝚛𝚘𝚠𝚗𝚒𝚎 𝚖𝚒𝚡 𝚒𝚗𝚝𝚘 𝚋𝚛𝚘𝚠𝚗𝚒𝚎𝚜

Answer 28

𝙲𝚑𝚎𝚖𝚒𝚌𝚊𝚕

Question 29

(𝚀𝚞𝚎𝚜𝚝𝚒𝚘𝚗: 𝙿𝚑𝚢𝚜𝚒𝚌𝚊𝚕 𝚘𝚛 𝚌𝚑𝚎𝚖𝚒𝚌𝚊𝚕 𝚌𝚑𝚊𝚗𝚐𝚎) 𝚆𝚊𝚝𝚎𝚛 𝚎𝚟𝚊𝚙𝚘𝚛𝚊𝚝𝚎𝚜 𝚒𝚗𝚝𝚘 𝚜𝚝𝚎𝚊𝚖

Answer 29

𝙿𝚑𝚢𝚜𝚒𝚌𝚊𝚕