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What are atoms?

Atoms are small particles that make up everything. If you picture an object made up from mini-footballs then that's what the atoms look like that make up the object just on a much, much smaller scale. Atoms ...
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Answered by Ruth W. • Science tutor
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Make X the subject of the equation (9x-7)/3 = 8y

To start solving a question like this you want to do it in a set of steps: Step 1: Get rid of the division. To do thsi you need to do the opposite function. The opposite of division is multiplication so you ...
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Answered by Ruth W. • Maths tutor
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Explain why fluorine is more reactive than chlorine.

There are three things to consider every single time relative reactivity is unknown: atomic radius, shielding, and number of electrons. The reactivity is the halogens ability to gain an electron, so number o...
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Answered by Steven A. • Chemistry tutor
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What is an indirect question? How do I identify it?

An indirect question is a question which has been previously asked and is now being reported. An example of this in english is: The teacher asked whether the students had done their homework. The original qu...
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Answered by Alicia E. • Latin tutor
9197 Views

What makes DNA molecules so stable?

The main bonding in DNA which renders the double helix structure so stable is that of hydrogen bonds. Between the complementary base pairs, hydrogen bonds connect the two strands of the helix. There are 3 H ...
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Answered by Steven A. • Biology tutor
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