Which is a balanced chemical equation?

a) C7H16 + 5O2 6CO2 + 4H2O

b) C7H16 + 11O2 7CO2 + 8H2O

c) C7H16 + 14O2 7CO2 + 5H2O

d) C7H16 + 22O2 14CO2 + 16H2O

Which terms most precisely describes the cellular process of breaking down large molecules into smaller ones?

The value for Kw is 1.0 x 10-14 at 298K, but this value is temperature dependent. Given what you know about Kw and acid/base chemistry, what will the pH of water be at 303K if the value for Kw is 1.

The number of d-electrons in Fe2 + (Z = 26) is not equal to that of A. p-electrons in Ne (Z = 10) B. s-electrons in Mg (Z = 12) C. d-electrons in Fe (Z = 26) D. p-electrons in CI (Z = 17)

To prepare 300.0 ml of 0.2 m nacl how many grams of nacl should be weighed out?

Theistic religion is centered in a belief in Select one: a. spirits or animals that control our lives. b. such totems as a rabbit's foot or four-leaf clover. c.

The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the following ways is a puffin dependent upon salmon? A. Puffins have a commensalistic relationship with salmon. B.

2) Which of the following is a true statement? A: All the atoms of an element must be identical. B: Compounds may be separated by physical means. C: Mixtures may not be separated. D: Homogeneous is one type of compound.

How to tell the difference between ionic and covalent bonding?

The combustion of propane may be described by the chemical equation C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) How many grams of O2 (g) O2 (g) are needed to completely burn 83.3 g C3H8 (g) ?

Was the relationship among temperature, heat, and thermal energy?