Why are food preservatives added to food?

O A.

to increase the rate of reaction

O B.

to decrease the rate of reaction

OC. to decrease potential energy of the reactants

OD. to increase the temperature of the reaction

At constant temperature the pressure on a 6.0 L sample of a gas is reduced from 2.0 atm to 1.0 atm. What is the new volume of the gas sample?

How could you identify a chemical reaction as being single replacement, simply by looking at it?

Which of the following is true concerning the noble gases? A. Their highest occupied s and p sublevels are filled. B. They belong to Group 8A. C. They are sometimes referred to as the inert gases. D. all of the above

Given that e = 9.0 v, r = 98 ω and c = 23 μf, how much charge is on the capacitor at time t = 4.0 ms

The area of earth science that examines the physical and biological changes that have occurred in earth's past is called

Which of the following hydrocarbons will most likely be found around cows?

Campare how the structure and function of a plant is similar to the human body

Definition of isometry.

What is the pH of a 0.500 molar NaOH solution?

A covalent bond between two atoms occurs when the atoms