Is the following sentence true or false? The radius of an atom can be measured directly.

Based on the kinetic molecular theory, which of the following statements is correct about the particles in a sample of gas? They have negligible kinetic energy. There is negligible force of attraction between them.

Which of the following are part of kinetic-molecular theory? Check all that apply. The particles in a solid do not move. The particles in a liquid are moving past one another constantly. The particles in gas move freely in all directions.

Which of the following functions as a form of insulation and long term energy storage? A. Carbohydrates B. Nucleic acids C. Lipids D. Proteins

5.2 cm of a metal is found to weigh 46.6 g on a three decimal balance. What is the density of the metal, expressed to the proper number of significant figures? 9 g/cm [2] 9.0 g/cm 8.96 g/cm 0.11 g/cm [5] 0.112 g/cm

A gas sample of argon, maintained at constant temperature, occupies a volume of 500. l at 4.00 atm. what is the new volume if the pressure were charged to 8.0 atm

For an endothermic reaction at equilibrium, the addition of a catalyst Group of answer choices causes no shift causes a shift to the right causes a shift to the left makes it an exothermic process

The atomic number of an element best corresponds to which of the following? O The mass of an atom of that element. O The number of electrons orbiting the nucleus of an atom of that element.

If a dinosaur once lived in mexico, and i now live in arkansas, can i be drinking the same water the dinosaur did?

Dough to which potassium bromate has been added rises better, producing a lighter, larger volume loaf.

Each enzyme has an optimal temperature and pH that it works best in. If enzyme ABC works best at pH 7, but ABC is in a cell with a pH of 9, will it catalyze more or less reactions?