Which if the following matters occupies more space, assuming similar number of molecules? A. (Solid) B. (Liquid) C. (Gas) D. (Solid and gas)

7. Which would feel warmer to the touch - a bucket of water at 50°C or a bathtub filled with water at 25°C? Which of these contains more energy? Account for any differences in your answers to these questions.

All of the noble gases, group 18, have eight valence electrons in its outer shell (excluding helium which only has two). which of these would represent the oxidation number of the noble gases such as xenon and argon?

An article suggests that substrate concentration (mg/cm3) of influent to a reactor is normally distributed with μ = 0.40 and σ = 0.09. (round your answers to four decimal places.) (a) what is the probability that the concentration exceeds 0.60?.

Tell Whether or not each equation is balanced mark A if you think it is correct mark B if you think it is not balanced 1) 2Fe (OH) 3 → Fe2O3 + 3H20 2) 2Al (OH) 3→ Al2O3 + 3 H2O

Why are isotopes that have relatively short half lives the only ones used in medical diagnostic tests?

You've asked your friends to define the terms "chemistry" and "chemical." With which definitions do you agree? Check all that apply. Check all that apply.

What happens to the entropy of a sample of matter when it changes state from a solid to a liquid?

In 1665 Sir Isaac Newton proposed the fundamental law of gravitation as a universal force of attraction between any two bodies.

What element is used in bright flashing advertising signs

Is the hydrogen ion concentration of a pH 3.8 solution higher or lower than that of a solution with a pH of 6.2?