What property of an object is expressed by the measurement of an item's mass per unit volume? A. density B. viscosity C. surface tension D. buoyancy

What is the word for a sample treated like other experimental groups except variable is not applied?

Since reactions occur as a result of collisions between particles, the particles are in a reaction vessel, the the concentration of particles, the more collisions are possible. The collisions that occur, the faster the reaction rate.

During which change of state would the volume of a substance increase the most?

When baking soda and vinegar react, the product includes bubbles. What has most likely occurred?

A balloon containing 0.500 mol Ar at 0.00°C and 65.0 kPa pressure is expanded by adding more argon. How many moles of argon are added to bring the sample to a final volume of 60.0 L at 30.0°C and 45.0 kPa? What is the original volume of the gas?

Which of the following are correct statements? Check all that apply. A. A neutron is a neutral particle in the nucleus. B. A proton is a positively charged particle that orbits the nucleus. C.

What is the empirical formula for propene (C3H6) ?

Which substance, when dissolved in water, forms a solution that conducts an electric current

Room has a dimension of 10ft x 20 ft x 8 ft. What is the volume of the room in cubic yards if 1 yard = 3ft

Which of the following best describes a mixture in which ionic compounds are dissociated in solution? a. ion solution b. aqueous solution c. hydraulic solution d. hydrochloric solution