BLOG

Chemistry Tuition Singapore O Level Chemistry Tuition- Salts Common Misconception   Misconception 1 On adding ammonia solution to aqueous copper(II) sulfate, a soluble blue precipitate is formed. (Comment: The error is the phrase “soluble precipitate”.) Correct Conception 1 On adding ammonia solution to aqueous copper(II) sulfate, a light blue precipitate is formed. The precipitate dissolves in excess ammonia solution.   Misconception 2 All metal ions react with aqueous sodium hydroxide to form precipitates. Correct Conception 2 Metal ions, such as Na+ and KE, do not form precipitates with NaOH(aq).   Misconception 3 To test for Cl– ions, add hydrochloric acid, followed by silver nitrate solution. Correct Conception 3 HC1(aq) should not be used, as Cl– ...

Tuition Singapore Primary English Tuition Singapore- Vocabulary   Marie could not concentrate on her studies as her brothers were creating a __________in the next room. blast patter ruckus symphony   Answer (3)   Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Primary English Tuition Singapore English Tuition  

Tuition Singapore Primary Maths Tuition Singapore – Numbers   Express 4 hundreds, 5 ones and 19 thousandths as a decimal. 45.019 45.19 405.019 450.19 Ans (3)   Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Primary Math Tuition Singapore Mathematics Tuition

Tuition Singapore Primary Science Tuition – Life Cycles of Fully Growth Plant     Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Primary Science Tuition Singapore Science Tuition

English Tuition Singapore Secondary English Tuition – Describe some of the public toilets you have frequented   Suggested Approaches Describe some of the public toilets which you have seen. What are some of the best toilets and why are they good? What are some of the worst toilets and why are they bad? What does one see and smell when one enters these toilets?   Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Secondary English Tuition Singapore English Tuition