A substance that accelerates the rate of a chemical reaction is called a (an)

a. catalyst.

c. molecule.

b. lipid.

d. element.

Your groceries are in a bag with paper handles. the handles will tear off if a force greater than 45 n is applied to them.

A large sphere of material is placed in a dissolving liquid. (a) When the radius is 1 m, it is observed to be changing at 8 cm/hour. At that instant, what is the rate at which the sphere's volume is being dissolved with respect to time?

Define colloid and list two examples.

P*V = n*R*T where P = pressure V = volume n = number of moles R = the universal gas constant T = temperature in degrees Kelvin This equation is known as the ideal gas law, and it can be used to predict the behavior of many gases at relatively low

What is the function of the muscles around the lens in the human eye

Why is objectivity important in science

Which scientist's work led to our understanding of how planets move around the Sun?

The process of gathering information through the senses is called what?

Are earths surface is made up of plates the move. And why

What fundamental frequency would you expect from blowing across the top of an empty soda bottle that is 24 cm deep, if you assumed it was a closed tube? The speed of sound in air is 343 m/s.