How are air masses classified? A. by the direction they move B. by weather conditions they bring C. by their size and shape D. by the locations where they are formed

A compressor takes 0.50 m3 of a gas at 33°C and 760 mmHg and compresses it to 0.10 m3, cooling it to - 55°C at the same time. What is the pressure of the gas at these new conditions? A. 3.7 x 10-4 mmHg B. 68 mmHg C. 2,700 mmHg D. 1.0 mmHg

Why did the hair get electrified after being rubbed by a balloon

A 0.180 m solution of a weak acid (ha) has a ph of 2.91. calculate the acid ionization constant (ka) for the acid.

Five more than two times the square root of a number is fifteen. What's the number

How does the electronegativity trend explain the first ionization energy trend

A solid yellow stripe is to be painted in the middle of a certain highway. If 1 gallon of paint covers an area of p square feet of highway, how many gallons of paint will be needed to paint a stripe t inches wide on a stretch of highway m miles long

A 0.45-g sample of aspirin is decomposed into its constituent elements and found to contain 0.27 g C, 0.020 g H, and 0.16 g O. Calculate the mass percent composition of C, H, and O in aspirin.

What volume of 6.00 m naoh would be required to increase the ph to 4.93?

Explain how the effects of nuclear charge and the increasing number of core electrons in an atom oppose each other.

What is the mole ratio of oxygen to pentane?