For the reaction c3h8 + o2 co2 + h2o, match the proper coefficient to the chemical substance it goes with for a balanced reaction. a. 1 co2 b. 5 o2 c. 3 c3h8 d. 4 h2o

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

What substance has a mass of 9.5g and volume of 2.1cm^3

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.