PLZ HELP
A) NaC2HO4 B) H2F2BLi C)2He2PSO4 D)3He2O4PH
Elements found in these formulas=

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2