1.1.2 This type of contract includes partners names, shares and responsibilities.  (1)

Copper has an atomic mass of 63.546 amu.  The Cu-63 (62.9296 amu) is 69.17%.  What is the amu of the other isotope?

4.3.2 Discuss why this shirt is a good choice as a basic item for a lady’s working wardrobe.   (3) 

1.1.12 The following type of additives have a negative influence on the behaviour of some children: (1)

Convert 4.0 K to °F. 

Mass of acetylsalicylic acid in one tablet of aspirin is usually 325 mg.  Convert this value to kilograms.

1.1.7 Choose the best recommendation for a person with HIV / Aids: (1)

One grain of sand on average contains 4.4 × 1019 atoms of silicon.  How many moles of silicon does this number correspond to?

Considering structure of a neutral atom, which statement below is true?

How many electrons does one Br– ion have?