Today’s Quiz /10 8 votes, 3.8 avg 459 Today's Quiz 1 / 10 Who was the first woman in space Valentina Tereshkova Sally Ride Kathryn C. Thornton Judith Resnik 2 / 10 Why does carbon form compounds mainly by covalent bonding? There are four electrons in the outermost shell of carbon It requires large amount of energy to form C4+ or C4---- It shares its valence electrons to complete its octet All of the above 3 / 10 Pure water has a pH value of 5 7 8 13 4 / 10 Two astronauts are floating in gravitation free space after having lost contact with their spaceship. The two will move towards each other move away from each other become stationary keep floating at the same distance between them 5 / 10 The sum of two number is 25 and their difference is 13. Find their product 104 114 155 165 6 / 10 Find the surface area of a 10cm x 4cm x 3cm brick. 162 sq cm 163 sq cm 164 sq cm 165 sq cm 7 / 10 The speed of propagation of an action potential in nervous tissue is not affected by Diameter of the Axon Presence or Absence of Myelin Sheath Temperature pH 8 / 10 The minimum number of rows and columns in MS Word document is 1 and 1 1 and 2 2 and 2 2 and 1 9 / 10 An automobile company is ready to test a new, full- size, fully operational model. This type of model is called a mockup prototype scaled system control system 10 / 10 An ammeter is always connected in series in a circuit because its resistance is very high its resistance is very low it does not draw current from the circuit it does not draw current from the circuit Your score is LinkedIn Facebook Twitter VKontakte 0% Restart quiz Please rate this quiz Send feedback