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hi, i have an chem experiment exam coming up, but i dont know what to the experiement says that an unknown sample would be provided and we would be asked to find to identify precipitation reactions and using precipitation reaction to identify the unknown sample. i understand that i would need a...

hi, i have an chem experiment exam coming up, but i dont know what to the experiement says that an unknown sample would be provided and we would be asked to find to identify precipitation reactions and using precipitation reaction to identify the unknown sample. i understand that i would need a...

So basically they just recommend so the student does not struggle in class so they won't reject me Is that right

Hi guys, I understand how to draw Lewis structure but struggle to know what shape the form for example how can you judge that a shape may be a trigonal planar or trigonal pyramid as both require 3 bonds to the central atom, please any links to where I can practice this skill. Thanks

A diagonal of a rhombus with the size 9 cm makes a angle of 16 degrees with the side Find the length of the diagonalso

Rectangle ABCD has a line BE drawn so that angle AEB equal 90 and DE equal 1 cm The width of the rectangle is 5 cm A) find angle BEC B) find the length of the rectangle

Hi i am currently an year 11 student nearly starting year 12 i was thinking about dropping a subject My subjects are Biology Physics Chemistry Mathematics English Advanced Ancient History I really want to drop one of the sciences but my school says you need all three sciences to become a...

hi, i have an chem experiment exam coming up, but i dont know what to the experiement says that an unknown sample would be provided and we would be asked to find to identify precipitation reactions and using precipitation reaction to identify the unknown sample. i understand that i would need a...

A plane leaves Melbourne and flies on a bearing of 065 degrees for 2500 km What is the bearing of Melbourne from the plane I am getting 210 but answer is 245 degrees why? Thanks

Thank you so much jazz519

So how do you they expect you to draw it structure for example tetrahedral or trigonal planar can you please explain that it would help me a lot thank you :D

How can you tell the molecular shape of a atom.

Hi, I have first hand investigation exam coming up soon and its 25% it say: Students will carry out an experiment to identify percipitation reactions and using precipitation reactions to identify the Unknown samples. Does anyone know how to prepare for it because I am very very confused and...