Molecular formula: C19H16

Double bond equivalence

i. Calculate the number of double bond equivalents in the molecule from the

molecular formula. (1 mark)

ii. What does this indicate about the molecule? (1 mark)

How many moles of solute are present in 50.0mL of 0.20m KNO3?

How many atoms of phosphorus are in 8.10 mol of copper (II) phosphate?

A sample of sodium reacts completely with 0.355 kg of chlorine, forming 585 g of sodium chloride. What mass of sodium reacted?

Before scientists determined that deer were the cause of the trillium decrease, what did most people believe was the cause? Most people thought that trillium was not getting enough sunlight in the forest.

True or false? minerals are identified on the basis of their physical properties

What is the pH of a 5.4 x 10-3 M HCl solution? A. 2.3 B. 3.3 C. 3.7 D. 11.7

Explain how the four states of matter differ at the molecular level

Aluminum and iron (II) oxide combine to form iron and aluminum oxide.

What is typically displayed on the x-axis of a solubility curve? Select one of the options below as your answer: a. grams of solvent per 100 grams of water b. grams of solute per 100 grams of water c. the temperature of the solution d.

How many subunits make up the final quaternary shape of the potassium channel?