SCIN131 Week 2 Quiz rated 100% correct

SCIN131 Week 2 Quiz Released: Jun 25, 2021 11:55 PM Your quiz has been submitted successfully. 3 / 3 points `Which of the following statements is true as stated by the chemist Joseph proust? Question options: All atoms of a given element have a constant composition and are different than atoms of any other element. The nucleus is a dense region of positive charge that always contains protons and neutrons. Matter cannot be either created or destroyed in a chemical reaction this is the law of constant composition 0 / 3 points What is matter made up of at the most fundamental level? Question options: neutrons isotopes atoms All matter is composed of elements, and all elements are made of atoms; but matter occupies spaces and has mass. Revie 3 / 3 points How would you correctly write the atomic symbol of nitrogen? Question options: Ni Ng Nt none of the above Topic discussed in Chapter 3.6 See the periodic table. 3 / 3 points `The elements that touch the zig-zag line on the periodic table are known as Question options: metals nonmetals transition metals none of the above Topic discussed in Chapter 3.6 See the periodic table. 3 / 3 points An atom of bromine-79 contains Question options: 34 protons and 35 electrons, only 44 protons, 44 electrons, and 35 neutrons 79 protons, 79 electrons, and 35 neutrons 35 protons, 79 neutrons, and 35 electro Topic discussed in Chapter 2 3 / 3 points Rutherford's experiment with alpha particle scattering by gold foil established that: Question options: times heavier than electrons. of protons, neutrons, and electrons. negative charge. positive charge. `When oxygen forms an ion, it Question options: loses two neutrons loses two protons all of these none of these View Feedback 3 / 3 points `When hydrogen is combusted with oxygen the product is water. If you produce 20 grams of water using 2 grams of hydrogen, how many grams of oxygen were needed for the reaction? Question options: 22 10 40 none of the above