Looking for Trong phòng thí nghiệm, một nhóm học sinh làm thí nghiệm như sau: Bước 1: Cho 5 ml dung dịch CuSO4 vào 10 ml dung dịch NaOH. Gạn lấy kết tủa Bước 2: Chia kết tủa làm hai phần bằng nhau vào hai ống nghiệm đánh số (1), (2). Lấy 10 mL et

Grid List

Auction

Honda Lawn Mower

Owner

Barwell
25.12.2025 124389

£ 60

Distribuie

Direct Sale

Asian TRANSSEXUAL South East London SHEM...

Asian Oriental TRANSSEXUA...

London
25.12.2025 87282

£ 140

Distribuie

Direct Sale

Asian TRANSSEXUAL South East London SHEM...

Asian Oriental TRANSSEXUA...

London
25.12.2025 85398

£ 140

Distribuie

Direct Sale

Asian TRANSSEXUAL South East London SHEM...

Asian Oriental TRANSSEXUA...

Lewisham
25.12.2025 86248

£ 140

Distribuie

Direct Sale

Comprehensive Fire Safety Solutions for...

Owner

Keynsham
25.12.2025 86893

£ 50000

Distribuie

Direct Sale

Top-Notch Fire Fighting Solutions to Pro...

Owner

Fraserburgh
25.12.2025 85289

£ 50000

Distribuie

Direct Sale

Ensure Ultimate Safety with BK Enginerri...

Owner

Barking
25.12.2025 86999

£ 50000

Distribuie

Direct Sale

Get the First-class Fire Fighting Servic...

Owner

Midsomer Norton
25.12.2025 87247

£ 50000

Distribuie

Direct Sale

CANCER SAVIOR

Royal pharmacy

City of Westminster
25.12.2025 87022

£ 20

Distribuie

Direct Sale

Combo: Clothes & Suitcases

Aayu-A Print On Demand

London
25.12.2025 87890

£ 500

Distribuie

Direct Sale

Sensory Toys

sk_lifestyle11

London
25.12.2025 87655

£ 9

Distribuie

Direct Sale

128G Carlinkit Ai Box Android 13 Wireles...

Owner

Liverpool
25.12.2025 85190

£ 150

Distribuie

Auction

Viking mens Bike (New Condition)

Owner

Aberdeen
25.12.2025 125688

£ 100

Distribuie

Direct Sale

+234811 038 5497 The best powerful spiri...

CHIEFDRBABAAIYEGBAJEJE

Fulham
25.12.2025 86902

£ 50000

Distribuie

Auction

Cryptocurrency Casino Clone Script – Fas...

Owner

Bristol
25.12.2025 85854

£ 1

Distribuie

Direct Sale

Get Your Own Crypto Exchange Running Qui...

Owner

Manchester
25.12.2025 85821

£ 1

Distribuie

Direct Sale

Top-Quality StormX Clone Script – Build...

Owner

Bristol
25.12.2025 87883

£ 1

Distribuie

Direct Sale

Profitable Sportsbook Clone Script for Y...

Owner

Manchester
25.12.2025 86652

£ 1

Distribuie

Auction

Essential Factors to Consider When Buyin...

Owner

London
25.12.2025 87564

£ 1

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-...

Owner

Carnoustie
25.12.2025 93761

£ 77

Distribuie

Direct Sale

PVC Christmas Tree 🎄 artificial snow

Owner

Barnet
25.12.2025 95581

£ 73

Distribuie

Direct Sale

King Size 5/6ft Bedframe _ Available Wit...

Midlands Furniutre

Houghton Regis
25.12.2025 92284

£ 399

Distribuie

Auction

* 5 Bed 5 Bath HMO – Ultimate Returns of...

Owner

Barking and Dagenham
25.12.2025 123875

£ 100000

Distribuie

Auction

First to see will buy cayenne 57plate

Owner

Brislington
25.12.2025 120667

£ 8000

Distribuie

Auction

20 dt solo Titleist golf balls

Owner

Aberdeen
25.12.2025 124120

£ 10

Distribuie

Auction

Gorgeous Holiday Villa with Private Pool...

Owner

Aberdeen
25.12.2025 123724

£ 1043

Distribuie

Auction

Mens ring

Owner

Andover
25.12.2025 123031

£ 5

Distribuie

Auction

Triumph Tiger 955i

Owner

Dunbar
25.12.2025 122530

£ 2500

Distribuie

Auction

MAN TGM 18.250 Sleeper Cab Curtainsider

Owner

Biddulph
25.12.2025 122983

£ 7950

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-...

Owner

Aberdeen
25.12.2025 93428

£ 77

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-...

Owner

Banff
25.12.2025 94548

£ 77

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-...

Owner

Fraserburgh
25.12.2025 95190

£ 77

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-...

Owner

Peterhead
25.12.2025 93239

£ 77

Distribuie

Auction

Mini Melissa (Vivienne Westwood ) infan...

Owner

Aberdeen
25.12.2025 121357

£ 20

Distribuie

Auction

Pioneer DV-370 and Cambridge Audio Azur...

Owner

Andover
25.12.2025 123989

£ 85

Distribuie

Auction

19'' GENUINE AUDI Q5 5 DOUBLE SPOKE S LI...

Owner

Belfast
25.12.2025 122343

£ 340

Distribuie

Auction

T-Shirt Design for Sale

Owner

Swalwell
25.12.2025 91127

£ 50

Distribuie

Auction

T-Shirt Design for Sale

Owner

Stranraer
25.12.2025 92520

£ 60

Distribuie

Auction

Explore Top Quality Lockout Padlocks Des...

Owner

Barking and Dagenham
25.12.2025 93933

£ 1

Distribuie

Auction

Vauxhall insignia breaking

Owner

Baguley
25.12.2025 122552

£ 10

Distribuie

Direct Sale

Electric pressure fryer

Shaheen Foods Ltd

Bare
25.12.2025 100277

£ 2500

Distribuie

Direct Sale

Ulez complaint full history,2 keys

Owner

Coventry
25.12.2025 100949

£ 2350

Distribuie

Direct Sale

Piston Filler

Shaheen Foods Ltd

Bare
25.12.2025 100240

£ 500

Distribuie

Auction

Pouch filling and sealing machine

Shaheen Foods Ltd

Bare
25.12.2025 99489

£ 30000

Distribuie

Direct Sale

2024 Saturn City Bug 4x4 Full Electric

Owner

Manchester
25.12.2025 99343

£ 2980

Distribuie

Auction

Dyson vacuum head

Owner

Boston
25.12.2025 101637

£ 15

Distribuie

Auction

Top quality luxurious products (Replica)

Owner

Birmingham
25.12.2025 91427

£ 100

Distribuie

Direct Sale

Top quality luxurious products (Replica)

Owner

Birmingham
25.12.2025 95773

£ 110

Distribuie

Direct Sale

Top quality luxurious bag

Owner

Birmingham
25.12.2025 92457

£ 90

Distribuie

Direct Sale

Bicycles for men and women

Owner

Birmingham
25.12.2025 98513

£ 650

Distribuie

Direct Sale

CarlinKit 8G 128G Android 13 SDM6225 Car...

Owner

London
25.12.2025 100524

£ 120

Distribuie

Direct Sale

Reflective mountain bike jersey

Owner

Porthcawl
25.12.2025 101615

£ 160

Distribuie

Direct Sale

Toyota Aqua 2017 (Good Condition, Cheap...

HTK HEAVEN LTD

Waltham Forest
25.12.2025 100030

£ 7800

Distribuie

Direct Sale

Minimalist Canvas Paintings For Bike Lov...

Owner

Kenton
25.12.2025 100092

£ 40

Distribuie

Direct Sale

2 in 1 Pet Drying Brush Pet Hair Dryer C...

Owner

Brislington
25.12.2025 103472

£ 120

Distribuie

Direct Sale

2013/63 Honda Jazz Hybrid

Owner

Kingston upon Thames
25.12.2025 96917

£ 7200

Distribuie

Direct Sale

2013/63 Honda Jazz 1.5 Hybrid

Owner

Kingston upon Thames
25.12.2025 98591

£ 7200

Distribuie

Direct Sale

Men's Lace-up Sneakers Mesh Sports Shoes...

Owner

Bristol
25.12.2025 99060

£ 120

Distribuie

Direct Sale

Winter Men's Boots Leisure Plus Size Fle...

Owner

Arbroath
25.12.2025 97323

£ 120

Distribuie

Direct Sale

Electric Scooter Adult Model 8.5 Inch Fo...

Owner

Bristol
25.12.2025 97683

£ 695

Distribuie

Auction

Honda Lawn Mower

Owner

Barwell 25.12.2025

£60

Distribuie

Direct Sale

Asian TRANSSEXUAL South East London SHEMALE Oriental LADYBOY Tgirl Pre-OP TS = Elly 07493399058

Asian Oriental TRANSSEXUA...

London 25.12.2025

£140

Distribuie

Direct Sale

Asian TRANSSEXUAL South East London SHEMALE Oriental LADYBOY Tgirl Pre-OP TS = Elly 07493399058

Asian Oriental TRANSSEXUA...

London 25.12.2025

£140

Distribuie

Direct Sale

Asian TRANSSEXUAL South East London SHEMALE Oriental LADYBOY Tgirl Pre-OP TS = Elly 07493399058

Asian Oriental TRANSSEXUA...

Lewisham 25.12.2025

£140

Distribuie

Direct Sale

Comprehensive Fire Safety Solutions for All Your Needs in Ghaziabad

Owner

Keynsham 25.12.2025

£50000

Distribuie

Direct Sale

Top-Notch Fire Fighting Solutions to Protect Lives in Kanpur

Owner

Fraserburgh 25.12.2025

£50000

Distribuie

Direct Sale

Ensure Ultimate Safety with BK Enginerring Fire Fighting Services in Patna

Owner

Barking 25.12.2025

£50000

Distribuie

Direct Sale

Get the First-class Fire Fighting Services in Punjab for Complete Protection

Owner

Midsomer Norton 25.12.2025

£50000

Distribuie

Direct Sale

CANCER SAVIOR

Royal pharmacy

City of Westminster 25.12.2025

£20

Distribuie

Direct Sale

Combo: Clothes & Suitcases

Aayu-A Print On Demand

London 25.12.2025

£500

Distribuie

Direct Sale

Sensory Toys

sk_lifestyle11

London 25.12.2025

£9

Distribuie

Direct Sale

128G Carlinkit Ai Box Android 13 Wireless CarPlay HDMI Output Wireless Adapter Android Auto Car Play Qualcomm 6225 FOTA Upgrade

Owner

Liverpool 25.12.2025

£150

Distribuie

Auction

Viking mens Bike (New Condition)

Owner

Aberdeen 25.12.2025

£100

Distribuie

Direct Sale

+234811 038 5497 The best powerful spiritual herbalist man in Nigeria to make money

CHIEFDRBABAAIYEGBAJEJE

Fulham 25.12.2025

£50000

Distribuie

Auction

Cryptocurrency Casino Clone Script – Fast Setup and Easy Customization

Owner

Bristol 25.12.2025

£1

Distribuie

Direct Sale

Get Your Own Crypto Exchange Running Quickly with a Crypto exchange Clone Script

Owner

Manchester 25.12.2025

£1

Distribuie

Direct Sale

Top-Quality StormX Clone Script – Build Your Business with Proven Models

Owner

Bristol 25.12.2025

£1

Distribuie

Direct Sale

Profitable Sportsbook Clone Script for Your Next Sports Betting Platform

Owner

Manchester 25.12.2025

£1

Distribuie

Auction

Essential Factors to Consider When Buying Lockout Padlocks

Owner

London 25.12.2025

£1

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

Owner

Carnoustie 25.12.2025

£77

Distribuie

Direct Sale

PVC Christmas Tree 🎄 artificial snow

Owner

Barnet 25.12.2025

£73

Distribuie

Direct Sale

King Size 5/6ft Bedframe _ Available With Mattress & Storage _ FHD

Midlands Furniutre

Houghton Regis 25.12.2025

£399

Distribuie

Auction

* 5 Bed 5 Bath HMO – Ultimate Returns of 34.14%

Owner

Barking and Dagenham 25.12.2025

£100000

Distribuie

Auction

First to see will buy cayenne 57plate

Owner

Brislington 25.12.2025

£8000

Distribuie

Auction

20 dt solo Titleist golf balls

Owner

Aberdeen 25.12.2025

£10

Distribuie

Auction

Gorgeous Holiday Villa with Private Pool Portugal Sunny Algarve. nr Albufeira. SPECIAL OFFER *

Owner

Aberdeen 25.12.2025

£1043

Distribuie

Auction

Mens ring

Owner

Andover 25.12.2025

£5

Distribuie

Auction

Triumph Tiger 955i

Owner

Dunbar 25.12.2025

£2500

Distribuie

Auction

MAN TGM 18.250 Sleeper Cab Curtainsider

Owner

Biddulph 25.12.2025

£7950

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

Owner

Aberdeen 25.12.2025

£77

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

Owner

Banff 25.12.2025

£77

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

Owner

Fraserburgh 25.12.2025

£77

Distribuie

Direct Sale

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

Owner

Peterhead 25.12.2025

£77

Distribuie

Auction

Mini Melissa (Vivienne Westwood ) infant size 4.5

Owner

Aberdeen 25.12.2025

£20

Distribuie

Auction

Pioneer DV-370 and Cambridge Audio Azur 540A

Owner

Andover 25.12.2025

£85

Distribuie

Auction

19'' GENUINE AUDI Q5 5 DOUBLE SPOKE S LINE ALLOY WHEELS TYRES ALLOYS 5X112

Owner

Belfast 25.12.2025

£340

Distribuie

Auction

T-Shirt Design for Sale

Owner

Swalwell 25.12.2025

£50

Distribuie

Auction

T-Shirt Design for Sale

Owner

Stranraer 25.12.2025

£60

Distribuie

Auction

Explore Top Quality Lockout Padlocks Designed for Industrial Environments

Owner

Barking and Dagenham 25.12.2025

£1

Distribuie

Auction

Vauxhall insignia breaking

Owner

Baguley 25.12.2025

£10

Distribuie

Direct Sale

Electric pressure fryer

Shaheen Foods Ltd

Bare 25.12.2025

£2500

Distribuie

Direct Sale

Ulez complaint full history,2 keys

Owner

Coventry 25.12.2025

£2350

Distribuie

Direct Sale

Piston Filler

Shaheen Foods Ltd

Bare 25.12.2025

£500

Distribuie

Auction

Pouch filling and sealing machine

Shaheen Foods Ltd

Bare 25.12.2025

£30000

Distribuie

Direct Sale

2024 Saturn City Bug 4x4 Full Electric

Owner

Manchester 25.12.2025

£2980

Distribuie

Auction

Dyson vacuum head

Owner

Boston 25.12.2025

£15

Distribuie

Auction

Top quality luxurious products (Replica)

Owner

Birmingham 25.12.2025

£100

Distribuie

Direct Sale

Top quality luxurious products (Replica)

Owner

Birmingham 25.12.2025

£110

Distribuie

Direct Sale

Top quality luxurious bag

Owner

Birmingham 25.12.2025

£90

Distribuie

Direct Sale

Bicycles for men and women

Owner

Birmingham 25.12.2025

£650

Distribuie

Direct Sale

CarlinKit 8G 128G Android 13 SDM6225 CarPlay AI Box: The Ultimate Wireless Upgrade for Wired CarPlay

Owner

London 25.12.2025

£120

Distribuie

Direct Sale

Reflective mountain bike jersey

Owner

Porthcawl 25.12.2025

£160

Distribuie

Direct Sale

Toyota Aqua 2017 (Good Condition, Cheap Price)

HTK HEAVEN LTD

Waltham Forest 25.12.2025

£7800

Distribuie

Direct Sale

Minimalist Canvas Paintings For Bike Lovers

Owner

Kenton 25.12.2025

£40

Distribuie

Direct Sale

2 in 1 Pet Drying Brush Pet Hair Dryer Comb

Owner

Brislington 25.12.2025

£120

Distribuie

Direct Sale

2013/63 Honda Jazz Hybrid

Owner

Kingston upon Thames 25.12.2025

£7200

Distribuie

Direct Sale

2013/63 Honda Jazz 1.5 Hybrid

Owner

Kingston upon Thames 25.12.2025

£7200

Distribuie

Direct Sale

Men's Lace-up Sneakers Mesh Sports Shoes Fashion Hollow-sole Low Top Running Shoes

Owner

Bristol 25.12.2025

£120

Distribuie

Direct Sale

Winter Men's Boots Leisure Plus Size Fleece-lined Platform Casual Shoes

Owner

Arbroath 25.12.2025

£120

Distribuie

Direct Sale

Electric Scooter Adult Model 8.5 Inch Foldable Portable Mobility Scooter Aluminum Alloy Scooter

Owner

Bristol 25.12.2025

£695

Distribuie

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Honda Lawn Mower

£60 Distribuie Salveaza

Asian TRANSSEXUAL South East London SHEMALE Oriental LADYBOY Tgirl Pre-OP TS = Elly 07493399058

£140 Distribuie Salveaza

Asian TRANSSEXUAL South East London SHEMALE Oriental LADYBOY Tgirl Pre-OP TS = Elly 07493399058

£140 Distribuie Salveaza

Asian TRANSSEXUAL South East London SHEMALE Oriental LADYBOY Tgirl Pre-OP TS = Elly 07493399058

£140 Distribuie Salveaza

Comprehensive Fire Safety Solutions for All Your Needs in Ghaziabad

£50000 Distribuie Salveaza

Top-Notch Fire Fighting Solutions to Protect Lives in Kanpur

£50000 Distribuie Salveaza

Ensure Ultimate Safety with BK Enginerring Fire Fighting Services in Patna

£50000 Distribuie Salveaza

Get the First-class Fire Fighting Services in Punjab for Complete Protection

£50000 Distribuie Salveaza

CANCER SAVIOR

£20 Distribuie Salveaza

Combo: Clothes & Suitcases

£500 Distribuie Salveaza

Sensory Toys

£9 Distribuie Salveaza

128G Carlinkit Ai Box Android 13 Wireless CarPlay HDMI Output Wireless Adapter Android Auto Car Play Qualcomm 6225 FOTA Upgrade

£150 Distribuie Salveaza

Viking mens Bike (New Condition)

£100 Distribuie Salveaza

+234811 038 5497 The best powerful spiritual herbalist man in Nigeria to make money

£50000 Distribuie Salveaza

Cryptocurrency Casino Clone Script – Fast Setup and Easy Customization

£1 Distribuie Salveaza

Get Your Own Crypto Exchange Running Quickly with a Crypto exchange Clone Script

£1 Distribuie Salveaza

Top-Quality StormX Clone Script – Build Your Business with Proven Models

£1 Distribuie Salveaza

Profitable Sportsbook Clone Script for Your Next Sports Betting Platform

£1 Distribuie Salveaza

Essential Factors to Consider When Buying Lockout Padlocks

£1 Distribuie Salveaza

**Headline:** "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77 Distribuie Salveaza

PVC Christmas Tree 🎄 artificial snow

£73 Distribuie Salveaza

King Size 5/6ft Bedframe _ Available With Mattress & Storage _ FHD

£399 Distribuie Salveaza

* 5 Bed 5 Bath HMO – Ultimate Returns of 34.14%

£100000 Distribuie Salveaza

First to see will buy cayenne 57plate

£8000 Distribuie Salveaza

20 dt solo Titleist golf balls

£10 Distribuie Salveaza

Gorgeous Holiday Villa with Private Pool Portugal Sunny Algarve. nr Albufeira. SPECIAL OFFER *

£1043 Distribuie Salveaza

Mens ring

£5 Distribuie Salveaza

Triumph Tiger 955i

£2500 Distribuie Salveaza

MAN TGM 18.250 Sleeper Cab Curtainsider

£7950 Distribuie Salveaza

**Headline:** "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77 Distribuie Salveaza

**Headline:** "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77 Distribuie Salveaza

**Headline:** "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77 Distribuie Salveaza

**Headline:** "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77 Distribuie Salveaza

Mini Melissa (Vivienne Westwood ) infant size 4.5

£20 Distribuie Salveaza

Pioneer DV-370 and Cambridge Audio Azur 540A

£85 Distribuie Salveaza

19'' GENUINE AUDI Q5 5 DOUBLE SPOKE S LINE ALLOY WHEELS TYRES ALLOYS 5X112

£340 Distribuie Salveaza

T-Shirt Design for Sale

£50 Distribuie Salveaza

T-Shirt Design for Sale

£60 Distribuie Salveaza

Explore Top Quality Lockout Padlocks Designed for Industrial Environments

£1 Distribuie Salveaza

Vauxhall insignia breaking

£10 Distribuie Salveaza

£60

Distribuie

£140

Distribuie

£140

Distribuie

£140

Distribuie

£50000

Distribuie

£50000

Distribuie

£50000

Distribuie

£50000

Distribuie

£20

Distribuie

£500

Distribuie

£9

Distribuie

£150

Distribuie

£100

Distribuie

£50000

Distribuie

£1

Distribuie

£1

Distribuie

£1

Distribuie

£1

Distribuie

£1

Distribuie

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77

Distribuie

£73

Distribuie

£399

Distribuie

£100000

Distribuie

£8000

Distribuie

£10

Distribuie

£1043

Distribuie

£5

Distribuie

£2500

Distribuie

£7950

Distribuie

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77

Distribuie

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77

Distribuie

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77

Distribuie

Headline: "$100 /Day Awaits: Your 2-Hour Workday Revolution!"

£77

Distribuie

£20

Distribuie

£85

Distribuie

£340

Distribuie

£50

Distribuie

£60

Distribuie

£1

Distribuie

£10

Distribuie

£2500

Distribuie

£2350

Distribuie

£500

Distribuie

£30000

Distribuie

£2980

Distribuie