The product of the measurements 2.05 cm x 32 cm should be rounded to

a. 1 significant figure

b. 2 significant figures

c. 3 significant figures

d. 5 significant figures

Which of these are true. A) in molecular compounds, more heat is needed to separate their molecules than is needed to separate ions. B) molecular compounds melt at much higher temperatures than do ionic compounds.

Which of the following statements about physical models is not true? a. Physical models are often three-dimensional representations. b. Physical models are used to represent an object or event. c. Physical models are usually in the form of a graph.

What is the rate law for the reaction that has the following mechanism? Step 1: NO (g) + NO (g) - N2O2 (g) (fast) Step 2: N202 (g) + O2 (g) - 2NO2 (g) (slow) rate = k[NO][N202] rate = K[NO]2 rate = k[NO] [02]

Can gravity be explained by chemistry

When magnesium sulfite decomposes, the solid transforms into magnesium oxide and sulfur dioxide. The reaction is as follows: MgSO3 (s) → MgO (s) + SO2 (g) According to the Gibbs free energy, at what temperature will this reaction be spontaneous?

Among the qualities listed on the human relations scale, the most important one for the building new relationship is?

Energy that is lost as heat to the environment is destroyed.

Determine the oxidation state of cl in naclo3

Gordon adds a piece of solid zinc metal to a beaker of hydrochloric acid. He identifies the products as zinc chloride and hydrogen gas. Which process took place in the beaker?

320.93 - (6109.7/2.3) Express your answer to the appropriate number of significant digits.