When you strike a match, what do you provide that enables the flame to appear?

a. catalyst

b. reactant

c. product

d. activation energy

e. activated complex

What volume does 1.954 moles of argon occupy at STP

Omg imgonnafailnfiedkla Use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

Determine how many atmospheres of pressure are equal to 65.78 kPa

The color indigo has a wavelength of 410.1 nm. What is the energy (in joules) of the color indigo?

Which example has only potential energy and no kinetic energy? a roller coaster zooming down a hill a child riding their bike a bird flying from a tree a ball sitting on a shelf

The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant RSuppose the osmotic pressure of a certain solution is measured to be 22. atm at an absolute temperature of 353.

Which one of the following is a redox reaction?. 2 Na (g) + Cl2 (g) 2 NaCl (s) A. K2Cr2O7 (aq) + 2 KOH (aq) 2 K2CrO4 (aq) + H2O (l) B. H2O (l) H + (aq) + OH - (aq) C. Na2CO3 (s) + 2 HCl (aq) 2 NaCl (aq) + CO2 (g) + H2O (l) D.

Name 4 common chemical properties of matter

Why is photosynthesis so important to plants, and can't animals use it?

One way the government of Kim Jong-il controls the lives of the people who live in North Korea is by a. requiring every citizen to vote. b. controlling information its people receive from the outside world. c. enforcing free trade with other nations.