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In chemistry there are two distinct theories to explain acid-base reactions; the Bronsted-Lowry and Lewis acid-base theories. The Bronsted-Lowry theory talks about removal or transfer of ...

Read the word problem more than once to make sure you fully understand what is being asked and write down the variables involved. Then try to write down all the derivatives in terms of each other, using t...

Some position words:

前边 qián - in front

后边 hòu - behind

左边 zuǒ - left

右边 yòu - right

上边 shàng - above

下边 xià - below

里边 lĭ - inside

外边 wài - outside...

y = 2 ^ x

take ln of both sides

ln( y) = ln (2 ^ x)

using the log rules we can bring the power of x down in front of the ln

ln( y ) = x*ln(2)

differentiate both sides wr...

This is a long answer (6 mark) question, which means you need to demonstrate your written communication of scientific ideas.

The first thing I would do in a question is identify the key words.