In which sample is the average kinetic energy the greatest?

1) 10. mL of HCl (aq) at 25°C

2) 15 mL of HCl (aq) at 20.°C

3) 10. mL of H2O (l) at 35°C

4) 15 mL of H2O (l) at 30.°C

A gas at 155 kPa and 298 K occupies a container with an initial volume of 1.00 L. By changing the volume, the pressure of the gas increases to 605 kPa as the temperature is raised to 398 K. What is the new volume?

Using the periodic table entry below, match the phrases with their corresponding values. 1. number of protons 8 2. atomic mass 19 3. number of electrons in the n = 1 shell 2 4. number of electrons in the n = 3 shell 20 5. number of neutrons 39

Which of the following reactions represents an exothermic reaction

Why are electrons important?

Whatcha group 2 element has the largest ionic radius

Atoms of the least reactive elements tend to have

How many total atoms of carbon, c, are contained in 5 c6h12o6?

Did alkali matels react with acid

How many atoms are in nickel

What happens whentwo gases from a liquid like hydrogen combine with oxygen to form water