Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) How many grams of hydrogen can be produced when 4.00 g of HCl is added to 3.00 g of Mg? Assuming STP, what is the volume of this hydrogen?

The rules of engagement (roe) working group is often used to (select all that apply.)

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.