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No. the actual reaction between phosphoric acid and water.

Please explain in details, thanks :)

Barbra Streisand

I have no idea how to get into dentistry from HSC. I had a look at other posts but there's a lot of jargon i'm not familiar with me. Could someone explain to me, as if you were explaining to a kid?

Urgent easy question! does human error (such as parralax effect accuracy or validity)

The question says it all, what are the safety precautions in the enzyme experiment, some of the equipment include: -Liver -rennin -catalase -hydrogen peroxide -mortar and pestle -test tube when i say safety precautions, i don't mean "common sense".

What instrument could i use to do this? general science question. Just say i want to cut a piece of liver in equal proportions. How could i do this using school laboratory equipment? *If you're familiar with liver it is quite hard to handle, it is almost like cutting a very chewy t-bone.

^ i am asking about validity and accuracy? if i give you the specifics of the method would you be able to help out?

yes i know the definitions. But i am unsure on how to improve accuracy and reliability? any suggestions. also what are some safety issues in the experiment?

bump

does anyone have the practical right ups for the enzyme activity using rennin?? also how can you improve validity and realiability in the experiment(s)?

Out of all the subjects i do i find chemistry most rewarding and applicable. It also helps with problem solving skills in other subjects.

thanks

yea, did nothing pretty much. I feel devastated.

+1

You only get assessed on the HSC course. However many of the things you learn in the preliminary course you will further expand in HSC so if you don't know the basics well then boo hoo

HDPE and LDPE i do not quite understand how the two are made. Can any suggest a good video which explains it.

Re: The Official Tennis Thread dj won!!!!!

i'm not sure i don't have the answer to the question. sorry

what i initially was confused was by how it changes from 6% to 10%. Since A1 (invested in the first year) = $5000 (1.06)^24 it earns intrest for a total of 25 terms, do you calculate using 6% or 10%. You would think 6%, however after it reaches the 15th term of investment does it switch to...