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Explain, in terms of atoms, why steel is stronger than iron.

In iron, all the atoms are of the same size so the layers can slide past each other. In steel, there are both carbon and iron atoms which are different sizes, meaning the layers are disrupted and cannot easi...
AR
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Pure water has a boiling point of 100 °C and a freezing point of 0 °C. What is the boiling point and freezing point of a sample of aqueous sodium chloride?

boiling point 102°C freezing point –2°C We shall now look at the molecular origin of the lowering of the freezing point and elevation of the boiling point. First of all, we know that the entropy of a gas is ...
NE
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Calculate the empirical and molecular formula of the molecule giving rise to the molecular ion peak at 148 m/z. The percentage composition by weight is 64.80 % carbon, 13.62 % hydrogen, and 21.58 % oxygen

Step 1, pick out the important information from the question: Carbon: Hydrogen: Oxygen % by weight: 64.8: 13.62: 21.58 Step 2, from the periodic table, find out the relative atomic masses of each element: Ca...
OH
Answered by Olivia H. • Chemistry tutor
6773 Views

How will a catalyst affect the position of equilibrium?

A catalyst is something that speeds up the rate of reaction, without being consumed during the reaction. If a catalyst is used in a reaction, it will only speed up the forward and backward reaction, however ...
ZK
Answered by Zareen K. • Chemistry tutor
10968 Views

Describe the electrons in Benzene

delocalised pi electronslower e density than alkeneshalogen carrier is needed to generate more powerful electrophile so reaction can take place with benzene draw benzene and resonance hybrids
IT
Answered by Imogen T. • Chemistry tutor
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