A sample of hydrogen is collected in a flask

over water. The partial pressures are 736 torr for

H, and 22 tort for H2O. What total pressure is

exerted by the mixture of gases?

What is Fermentation?

Which statements are true of heterogeneous mixtures? 1) They settle out 2) The proportions of solute to solvent may vary. 3) The solute is evenly distributed throughout 4) They are composed of two solvents and to soutes 1 and 2 2 and 4 3 only 2 only

What is a crystal? a. a type of rock b. the smallest unit of an element c. an artificial, decorative substance d. a solid made of atoms arranged in an orderly fashion

When a person uses a iron to remove the wrinkles from a shirt, why does heat travel from the iron to the shirt

How is the motion of particle in a gas different from the motion of particles in a liquid?

Which of the following is not a skill scientist use to learn about the world A. Predicting B. Observing C. Inferring D. Scientist use all of the above skills

When you overshoot during titration what is the result

The transmission of heat requiring the movement of a liquid or a gas is A. transduction. B. convection. C. radiation. D. conduction

The molecular formula HOH is an example of an

Which choice is an example of an endothermic process? . conversion of steam to ice . conversion of steam to water . conversion of water to ice . conversion of ice to steam