1) What is nanotechnology? a) Is manipulation of matter on an atomic, molecular, and supramolecular scale b) Is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions c) Is the natural science that studies matter, its motion and behavior through space and time, and the related entities of energy and force. d) Is the scientific study of functions and mechanisms in a living system. 2) Choose word related to chemistry a) Engine b) Chamber c) Copper d) interia 3) Which picture shows the engine? a) b) c) 4) Which of the following chemical compounds doesn't have oxygen? a) MgSO4 b) C17H33COOH c) NH4Cl d) (C3H7COO)2Ca 5) Select a unit of pressure a) Pa b) J c) Dimensionless d) No answer 6) What is torque? a) Is the rate of change of the velocity of an object with respect to time b) Is a natural phenomenon by which all things with mass or energy—including planets and stars c) Is the study of the chemical reactions that are catalysed by enzymes d) Is the rotational equivalent of linear force 7) Dissociation is the breakdown of chemical compounds under the influence of water on ... a) Anion and chlorine b) Cation and enzyme c) Isomer and enzyme d) Anion and cation  8) What is this?  a) Fighter b) Biplane c) Transit plane d) MiG 9) What tool can be used to measure? a) Bulb b) Chamber c) Pulley d) Gauge 10) Chemical compound, which leads to innihilate of microbe, microorganisms a) Answer C, D and E b) Vitamin D. c) Antibiotics  d) Disinfectants e) Antiseptics

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