Which part of earth contains plates

What is the average kinetic energy of any substance at 0 K A. 0 B. - 273 C. 273

Which three statements represent the benefits of performing experiments using computer simulations? The scientist can control for more confounding variables. The results are more accurate and reliable.

The displacement method of measuring volume: is always accurate can be used to measure the volume of solids is not affected by solubility can yield inaccurate results is the only way to measure volume

How many molecules are in 2.34 mol H2O?

A 4.0 g sample of a solid changes from 20.0 ºC to 36.0 ºC upon addition of 25.0 cal of heat. What is the specific heat of this solid?

A 27.40 g sample of liquid mercury is initially at 158.30°C. If the sample is heated at constant pressure ( = 1 atm), kJ of energy are needed to raise the temperature of the sample to 376.20°C. How much energy in kJ is required?

When a sample of gas is cooled, it condenses into a liquid. In which of the following ways do the molecules of the original gas sample compare with the molecules of the liquid? a. The molecules weigh less as a gas than they do as a liquid. b.

In a group 1 analysis, a student obtained a precipitate containing both AgCl and PbCh. Which of the following reagents would enable separation of AgCl (s) from PbCl (s) ? O Hys 0 Na2CO3 o KOH O NH3 O

Round to four significant figures 0.00238866

Gases are unique because it is the only phase that can be compressed can flow is composed of moving particles cannot be compressed