It is believed that the reaction responsible for the depletion of ozone in the atmosphere is O3(g) + NO(g) + O2(g) + NO2(g) When 100.3 g of O3 reacts with excess NO, the actual yield of the product NO2 is 81.5 g. What is the % yield? Molar masses: O, 16.00 g/mol; N, 14.01 g/mol A. 84.8% B.75.1% C. 95.6% D. 96.1% E. 49.9% QUESTION 21 A sample of aluminum contains 2.91 x 1018 atoms of aluminum. What is the mass of this sample?

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!