What important issues might an investigator encounter when collecting arson evidence? Group of answer choices

The evidence might be fragile from the burning

There aren't any major issues associated with arson evidence.

The evidence might still be on fire.

It might smell like gasoline.

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa