High School Chemistry Jeopardy-Round #2

Structure and Bonding

100

This is a charged particle formed when a nonmetal gains one or more electrons

What is an anion?

200

In the nucleus of an atom, this is the particle with greatest mass

What are a neutron ?

300

This is a combination of two or more atoms joined by a covalent bond.

What a molecule?

400

A substance composed of two or more types of atoms joined buy chemical bonds.

What is a compound?

500

A heterogenous mixture that does not settle out.

What is a colloid?

Gases

100

Reducing the volume of a sample of gas to one third the original volume would have this effect on the pressure.

What is triple? (or What is increase?)

200

This is the amount you must add to a °C temperature in order to convert to kelvin.

What is 273?

300

At constant temperature, when the volume of an ideal gas is increased the pressure does this.

What is decrease?

400

This is the standard pressure when referring to STP

What is 1 atmosphere, (or 101.3kPa, or 760mmHg)?

500

This is the volume of 32.00 grams of oxygen at standard temperature and pressure

What is 22.4 liters?

Names and Formulas

100

This is the chemical name of the compound NaCl

What is sodium chloride?

200

This is the name of the compound SO

What is sulfur monoxide?

300

This is the name of the compound N₂O₄

What is dinitrogen tetroxide?

400

This is the formula for iron(III) oxide

What is Fe₂O₃?

500

This is the formula for copper(I) carbonate

What is Cu₂CO₃?

Reactions and stoichiometry

100

This is the type of reaction that is occurring in a flask if the flask feels cold to the touch.

What is an endothermic reaction?

200

When reactants form product in a chemical reaction, this is the change in mass of the system.

What it is zero?

300

This is the number of atoms in 22.99 grams of sodium

What is 6.01x10²³ ?

400

This is the number of moles of CH₄ required to completely react 3 moles of O₂

CH₄+2O₂ --> CO₂+ 2H₂O

What is 1.5?

500

2NO_2(g)  <--> N₂O_4(g)+heat

This is the direction the above equilibrium will shift if the system is heated

What is a to the left? accept toward the reactants, or reverse

Acid-Base

100

The pH range of substances that taste bitter

What greater than seven?

200

This type of substance decreases the concentration of H⁺ ions in a solution

What is a base?

300

When the base KOH is added to hydrochloric acid (HCl) water and this salt are formed

What is potassium chloride (or KCl)?

400

This word refers to acids, bases, and even salts, since all three conduct electricity when dissolved in water.

What is an electrolyte?

500

The pH range of substances that turn blue litmus paper red

What is less than seven?