The reaction: 2H2(g) + O2(g) 2H2O(g), can be interpreted as: a. 2 moles of hydro

ID: 1078236 • Letter: T

Question

The reaction: 2H2(g) + O2(g) 2H2O(g), can be interpreted as:

a. 2 moles of hydrogen gas reacts with 1 mole of oxygen gas to produce 2 moles of water.

b. 2 grams of hydrogen gas reacts with 1 gram of oxygen gas to produce 2 grams of water.

c. 2 hydrogen atoms react with 1 oxygen atom to produce 2 atoms of water.

d. 4 hydrogen atoms react with 2 oxygen atoms to produce 2 water molecules.

e. All these options are correct.

6. Which of the following statement(s) is(are) true for ionic bonding?

a. The electrons are shared between the atoms.

b. There is a large electronegative difference ( 2.0) between the atoms.

c. The bonding that occurs is usually between two nonmetal atoms.

d. The bonding that occurs is usually between metal and nonmetal atoms.

e. A noble gas configuration is formed by each element or ion.

7. True or false? The greater the difference in electronegativity between two bonded atoms is, the less polar the bond. a. True b. False

8. In what type of reaction is water always a product?

a. precipitation

b. acid-base

c. oxidation-reduction

d. decomposition

e. combustion

The reaction: 2H2(g) + O2(g) 2H2O(g), can be interpreted as: a. 2 moles of hydro

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