Which of the following (A-E) correctly identifies all of the compounds from the list below that contain covalent bonds in their structure?CO2 (g) Ca(OH)2 (s) H 2SO4 (l) MgCO3 (s)…

The table below shows information relating to gas exchange in an active muscle when blood first enters that muscle.Which row of the table is correct? Answer: 13) E Read the…

w, x, y and z are integers such that w < x2, x > y2, y2 < z2 and x > z . Which one of the following inequalities must…

Consider this circuit. Which line in the table gives the current flowing in the ammeter, in amps, when the switch isopen, and when it is closed? Answer: 11) B The…

Cyclohexene, C6H10, can be represented as:Use this information to calculate the relative molecular mass of the hydrocarbon shown below:[Ar values: H = 1; C = 12] Answer: 10) D In…

Here are five statements about natural selection:1 Individuals within a species show variation.2 Individuals within a species compete with each other for, among other things, resources.3 Individuals with advantageous adaptations…

If you look at a clock and the time is 9.45, what is the angle between the hour and the minute hands? Answer: 8) D Number of degrees in a…

Which one of the following statements about nuclear physics is true? Answer: 7) E A – WrongThe definition of nuclear fission is splitting of a nucleus into two smaller nuclei.…