Helium (H) is a valuable gas used in industry, low - temperature research deepsea diving tanks, and balloons. How many miles of the (He) atoms are in 6.46g of the (He)​

Endeleev saw trends in the physical and chemical properties of elements when he organized them by

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?

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