Which of these equations is balanced?

a. Zn + 2HCl - - > ZnCl2 + H2

b. S8 + 24F2 - - > 8SF6

1. a

2. b

3. a and b

4. neither

How to ditermin somthings volume?

If 24.6 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 301 Kelvin and 1.01 atmospheres? Show all of the work used to solve this problem. 2Li (s) + 2H2O (l) yields 2LiOH (aq) + H2 (g)

How are elements identified in terms of there atoms?

3. What is an element?

Given that naphthalene is insoluble in water and sublimes easily upon heating, describe two different methods by which you could separate naphthalene and Nacl.

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?

What is the name of the outermost layer that forms a boundary around the outside of each cell

What does an ionic compound form?

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?