Which does not contain a lens?

A. A camera

B. An eye

C. Binoculars

D. A mirror

A sample of nitrogen gas has a volume of 578 mL and a pressure of 124.1 kPa. What volume would the gas occupy at 80.2 kPa if the temperature remains constant?

The Hrxn of formation of carbon dioxide is negative. Which statement is true? The reaction is endothermic. The reaction is exothermic. The amount of carbon dioxide is more than the amount of reactants.

By paying low wages, factory owners were able to

Winston predicts that certain people will be vaporized and that certain people will never be vaporized. Who? Why?

How many directions of cleavage does fluorite exhibit (see animation in placemark) ? a. eight b. four c. two d. three

What is the enthaply of the reaction?

Which color has a higher frequency, A. red light B. blue light

what is the volume of 0.98 mol oxygen (O2) gas at 275 K and a pressure of 2.0 atm? (the universal gas constant is 0.0821 L*atm/mol*K)

Which element is classified as an alkali metal? Rb Sr Zr Cl

Which statements about a neutral atom are correct? Check all that apply. The positively charged particles in the nucleus are positrons. The radius of the electron cloud is twice as large as the radius of the nucleus.