The volume of a rock was determined by the displacment method to be 550 cm cubed. It has a mass of 55 g. Calculate the density of the rock.

What is the purpose of the coffee cup in a coffee cup calorimetry experiment? a. The StyrofoamTM of the coffee cup acts as a catalyst for heat transfer. b. The soft coffee cup is safer to work with than a glass beaker. c.

What is the difference between a subsurface and a surface event? List an example of each from the rock cycle.

Methyl salicylate, C8H8O3, the odorous constituent of oil of wintergreen, has a vapour pressure of 1.00 torr at 54.3oC and 10.0 torr at 95.3oC. a. What is its vapour pressure at 25oC? b.

Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of H + and Fe3 + in the balanced reaction?

Infer why life is unlikely on the outer planets in spite of the presence of water, methane, and ammonia materials needed for life to develop.

How does the surface on which a car moves affect how fast it goes

How many milliseconds (ms) are there in 3.5 seconds (s) ?

Which pair of organs, located in the lower back, collects liquid and waste from the blood? A. liver B. lungs C. kidneys D. skin

A caterpillar has an exoskeleton and feeds on many leaves before it makes a cocoon and becomes a butterfly. Which type of organism is a caterpillar? 1. an autotroph and an invertebrate 2. a heterotroph and an invertebrate 3.

Which of the following gases is produced by a storage battery when it's charging?