1. find the elements magnesium, cesium, and nitrogen on the periodic table. a. what monoatomic ions would each form? write this with the appropriate symbol abbreviation. be sure to use subscripts or superscripts as necessary. example: al3+ (5 points) b. then, given what you know about chemical bonding, give the formulas for the types of ionic compounds they would produce with each other. be sure to use subscripts or superscripts as necessary. explain how you determined this. no credit without an explanation. (10 points)

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative

Why must humans find substitutes for many minerals found on earth? (a) form at an extremely slow rate (b) controlled by other countries (c) too deep in the earth to collect