2H2 + O2à2H2O

How many water molecules are created when 32 grams of oxygen react completely with 4 grams of hydrogen?

A. 2

B. 20

C. 6.02 * 1023

D. 1.2 * 1024

Which is an example of negative acceleration? a) a snowboarder who increases speed when traveling downhill b) a biker who maintains a constant speed through a race c) a skateboarder who reduces speed when moving up a hill d) a runner who fluctuates

What is the molarity of 1.0L NaCl solution containing 1 mole of the solute

Which of the following is most acidic?

1) During the formation of an ionic bond, the atom that transfers its valence electron is the atom with the A) higher electronegativity value B) lower electronegativity value C) lower ionization energy D) higher atomic mass 2) Which type of bonding

How many electrons are in an Fe2 + ion? (1) 24 (3) 28 (2) 26 (4) 56

Water is A. Acidic B. Basic C. Neutral

What variables affect the acceleration of an object and in what manner do they affect the acceleration?

How do valence electrons relate to the chemical reactions of an element?

What is the weighted-average mass of all known isotopes for an element

What is the Celsius equivalent of 212°f