Rates of reaction were measured when the amounts of reactants used up were small compared to total quantities of reactants present. why?

Why can -NH2 act as a base?

Effect of a DNA mutation on enzymes

What properties do chromium and nickel give steel?

what is meant by zero order?

Measuring initial rate on a time-conc graph

Why does alloying increase strength of metal?

Explain what is meant by the term complex ion

Why are complexes coloured? (long answer)

Describe the structure of DNA

why do enzymes only
catalyse specific reactions?

What is substrate order of reaction at high substrate concentrations?

what makes a carbon chiral?

what and why is the coordination number of edta4- ?

why should we recycle steel?

how can enzymes form ionic bonds with substrates?

how do you determine if a sample is pure?

Why do molecules absorb infrared radiation at specific frequencies?

why is carboxylic acid more acidic than an alcohol?

why do amino acids have such high melting points?

how can high resolution mass spectrometry be used to find the molecular formula of a compound by using m/z of M+ peak?

what is Fe2O3.xH2O called?

Why are carboxylic acids soluble in NaOH (aq)?

effect of pH on enzymes

good things about enzymes

what is meant by crystalline?

how can you tell if something is in acid-base equilibrium?

what is meant by tertiary structure?

how can enzymes catalyse the breakdown of substrates?

why do enzymes have an optimum temp?

affect of temps lower than Tg

how to calculate Rf?

why, after 50 years, are scientists still using Watson and Crick’s model for DNA?

when talking about what IMFs are present say...

why did they originally think proteins held the genetic code?

why don't you need to use an indicator in MnO4 titrations?

what is a zwitterion?

what get "zwittered" when zwitterions form?

should you write orders as number or letters?

what does mass spec stand for?

questions about rds? start with ...

what is meant by the term pharmacophore

competitive inhibition

sequence of events from a natural substance to medical drug

problems with
HNO3 + NH3 -> NH4NO3

when talking about changes in entropy say...

ways to decrease CO2 levels