How does an increase in atmospheric pressure affect the following? (Chapter 10) a) the boiling point of water b) the melting point of ice

What is the period of a pendulum?

How does an increase in confining pressure affect a rock's melting temperature? (A) The melting temperature increases. (B) The melting temperature decreases. (C) The melting temperature is stabilized. (D) It has no effect on the melting temperature.

At atmospheric pressure, a balloon contains $2.00 \mathrm{~L}$ of nitrogen gas. How would the volume change if the Kelvin temperature were only 75 percent of its original value?

Classify the following bonds as ionic, covalent, or polar covalent using electronegativity values. (Chapter 9 ) a) $\mathrm{NH}$ c) $\mathrm{BH}$ b) $\mathrm{BaCl}$ d) $\mathrm{NaI}$

What effect does a decrease in confining pressure have on the melting temperature of rocks in the upper mantle?

Can an atom of an element have six electrons in the $2 p$ sublevel?

Overloaded Why do tire manufacturers recommend that tire pressure be increased if the recommended number of car passengers or load size is exceeded?

A cylinder containing $32 \mathrm{~g}$ of oxygen gas is placed on a balance. The valve is opened and $16 \mathrm{~g}$ of gas are allowed to escape. How will the pressure change?

Explain why balloons filled with helium rise in air but balloons filled with carbon dioxide sink.

What are allotropes? Name three elements that occur as allotropes.

How can a reaction be slowed down?

a) add an inhibitor

b) increase the activation energy

c) add more reactants

d) all of the above

The passenger cabin of an airplane is pressurized. Explain what this term means and why it is done.

Use Boyle's law to predict the change in density of a sample of air if its pressure is increased.