*chemistry section 2bc - activitie x==de eacyber. ims. lincolnlearningsolutions. org/student/74335930/activity/e2841 af29ec14816a74ae1ed0d165aa9_1lll.2b c - activitiesmastery assess it_5 scheveodw-school year > week 18 > day 873wish />wë narw many moles of -of nacl are in the sample? un2. a scientist counts 5.62 x 10space below.-9.33 moleseffer-fee-8.16 moles. el10.5 moles11.33 molesf. ii. bi ue

b

Explanation:yes

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.