A substance is found to be reactive, flammable, soluble, and explosive. Which of these observations is a physical property? A. reactive B. explosive C. soluble D. flammable

A sample of gas has an initial volume of 25 L and an initial pressure of 3.5 Pa. If the pressure changes to 1.3 Pa, find the new volume, assuming that the temperature remains constant.

Elements in group 2 are classified as alkaline earth metals. what is most similar about the alkaline earth metals?

1. For each solute, identify the better solvent: water or carbon tetrachloride.

A 1.5L intraveneous (IV) solution contains 919 grams glucose (C6H12O6). What is the molarity of this solution?

What are the most reactive metals according to the metal activity series?

A reaction takes place that results in an amount of 585 grams of product that is recovered. The theoretical amount calculates to be 650 grams. What is the percent yield?

2. This graph shows the energy involved in a reaction involving two molecules. Describe what is happening or what the state of the reaction is at A, B, C, and D. Then tell if this is an exothermic or an endothermic reaction.

Which group of elements belongs to the f-block? O metalloids O inner transition metals O metals O nonmetals

When you open a bottle of a soft drink and leave it open, the drink eventually goes flat. this happens because the equilibrium between carbonic acid and carbon dioxide shifts to produce?

When you go down a group, does the tendency for a metal to react (become duller) increase or decrease?