physics and chemistry

A single disturbance that moves from point to point through a medium is called a ___.

• period

• periodic wave

• wavelength

• pulse

Wave motion in a medium transfers

• energy, only

• both mass and energy

• mass, only

• neither mass nor energy

What is an example of a longitudinal wave?

• gamma ray

• water wave

• sound wave

• x-ray

As the frequency of a wave increases, the period of that wave

• remains the same

• decreases

• increases

An opera singer's voice is able to break a thin crystal glass if the singer's voice and the glass have the same natural

• amplitude

• wavelength

• frequency

• speed

Stoichiometry is the:

• calculation of amounts of substances in a chemical reaction from the balanced equation

• calculation of the number of particles in a physical reaction from the balanced equation

• calculation of the mass of substances in a chemical reaction from the chemical equation

• bane of my existence

What is the most important piece of information necessary to perform a stoichiometric calculation?

• Number of moles

• Number of particles

• Mass of reactants

• A balanced chemical equation

  HIDE ANSWER

Which mixture is heterogeneous?

• Salt water

• brass

• oily water

The quantitative relationship between reactants and products is called

• Stoichiometry

• Mole ratio

• Law of conservation of mass

What is a stoichiometric mixture?

• A mixture where how much product was made can be calculated

• A reaction with a limiting reactant

• A mixture where there is no limiting reactant or excess reactant

• A reaction with too much of one reactant