A mechanical wave moves through a medium, which can be (

a. a liquid (

b. a gas (

c. a solid (

d. all of the above

What are elements 90-103 called on the periodic table?

What forces the inner core of Earth to remain solid?

What is special about our nitrogen and what is its main function in the atmosphere

What does the mean H2O2

An airbag generates 1.8g of nitrogen gas (N2, molar mass = 28.0 g/mol) at a pressure of 101.3 kPa and a temperature of 34°C. What volume, in liters, will it occupy?

The Greek letter D stands for A. Mass of B. Rate of C. Change in D. Heat stored in

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals