A 3.450 L sample of exciting helium exerts a pressure of 56.0 kPa at 10.0 degrees C. The sample is then compressed to 2.55L and exerts 67.2 kPa of pressure. Calculate the new temperature of the helium in Degrees C.

Which best describes why nh4+ can form an ionic bond with ci-?

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.