The energy needed to get a reaction started is the

a. enzyme energy.

b. activation energy.

c. catalyst energy.

d. chemical energy.

The pass change in which a substance change from solid to a liquid is

Briefly summarize the complications that Mr. Kraler brings the members of the Annex How does this connect back to Act 1?

When are the products of an equalibrium reaction favored

What activity plays the biggest role in increasing greenhouse gases

Which statement correctly describes a scientific theory?

A gas has a volume of 30 L at 105 kPa. What pressure is required to compress the gas to 21 L?

Using special equipment which layer of the sun atmosphere is visible during a total solar eclipse

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3