Which of the following could be used to describe the rate of a reaction?

change in time/change in concentration

change in mass/change in concentration

change in concentration/change in time

change in concentration/change in mass

What is the ratio of carbon atoms to oxygen atoms in this compound

Be sure to answer all parts. Determine the number of significant figures in each of the following measurements: (a) 16 ml (b) 6701 g (C) 0.0810 m (d) 5.8 x 106 molecules (e) 560 kg

A race car moves at a constant speed around an oval track is the car accelerating why or why not

Rock transfers heat rapidly. truefalse

How much 0.100 m hcl is required to completely neutralize 20.0 ml of 0.250 m naoh?

A penny has a mass of 2.50g and the moon has a mass of 7.35 X 10^22 Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

If a car tire has a diameter of 3232 inches, what is the approximate circumference of the tire?

9) Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak.

Explain what happens to the average kinetic energy thermal energy and temperature of a substance when the particles in the substance slows down

Which of the following could be used to describe the rate of a reaction? change in time/change in concentration change in mass/change in concentration change in concentration/change in time change in concentration/change in mass