What instrument is used to collect humidity data?

1) anemometer

2) barometer

3) hygrometer

4) thermometer

A hot-air balloon is filled with air to a volume of 4.00 3 103 m3 at 745 torr and 218C. The air in the balloon is then heated to 628C, causing the balloon to expand to a volume of 4.20 3 103 m3.

The atomic mass of N is 14.01 g/mol and the atomic mass of H is 1.008 g/mol. what is the molecular mass of NH3

A reaction container holds 5.77 g of P4 and 5.77 g of O2. The following reaction occurs: P4 + O2 → P4O6. If enough oxygen is available then the P4O6 reacts further: P4O6 + O2 → P4O10. a. What is the limiting reagent for the formation of P4O10? b.

Where does displacement begin during an earthquake? a. Epicenter c. Fault line b. Focus d. Seismocenter

What is the volume of a balloon of gas at 842 mm Hg and - 23° C, if its volume is 915 mL at a pressure of 1,170 mm Hg and a temperature of 24°C?

Two liquids that are soluble in each other in any proportion are said to be what?

Which of the following is not a chemical reaction a) gas formation b) solid formation c) energy change d) state change

Which equation is derived from the combined gas law

What is the ph of a solution with [h3o+] = 1 * 10-9 m?

Which base has the lowest ionization constant (Kb) ? A) HCl B) NaOH C) bleach D) blood