As an acid, what does HCl give up pretty easily?

• an electron

• a hydrogen ion

• a chlorine ion

• a neutron

Tags

NGSS.HS-PS1-2

Sodium hydroxide, an extremely caustic substance, is more commonly known as ___

• battery acid

• stomach acid

• baking soda

• lye

Tags

NGSS.MS-PS1-1

What kind of a reaction happens when an acid and a base are mixed?

• a decomposition reaction

• a synthesis reaction

• a neutralization reaction

• a combustion reaction

Mixing concentrated acids and bases ___

• absorbs heat

• releases heat

• releases a gas

• absorbs moisture

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

If they can, molecules will move toward a state of ___

• lower energy

• higher energy

• decay

• unrest

Tags

NGSS.HS-PS1-4

The internal energy of the system plus the product of pressure and volume is called ___

• Gibbs free energy

• total energy

• entropy

• enthalpy

Tags

NGSS.HS-PS3-1

At constant pressure, enthalpy works out to be exactly the same as ___

• the temperature of the surroundings

• the temperature of the system

• the heat that's absorbed or released by a reaction

• the volume of the system

Tags

NGSS.HS-PS1-4

While hand-warmers use exothermic reactions, chemical ice packs for treating injuries are based on ___

• endothermic reactions

• isothermic reactions

• isobaric reactions

• hypothermic reactions

Tags

NGSS.HS-PS1-4

How far the fuel in an airplane's tank will allow it to fly is based on the ability to calculate ___

• elevation

• change in enthalpy

• gravitational potential energy

• atmospheric pressure

Tags

NGSS.HS-PS3-1

One of the ways we can calculate the change in enthalpy of a system is with ___

• Markovnikov's Rule

• The Haber Process

• Hess's Law

• Bernoulli's equation

Tags

NGSS.HS-PS1-4