A sample of nitrogen gas (N2) containing 1.5 x10^23 particles has the same number of particles as a sample containing:

A.

0.50 moles Ne

B.

2.0 moles He

C.

1.0 moles hydrogen gas

D.

25 moles oxygen gas

Elements with the same number of shells are called? All the element that have the same number of valence electrons and have similar physical and che. ical properties are called?

Consider the reaction below. 2 upper N subscript 2 upper O subscript 5 (g) double-headed arrow 4 upper N upper O subscript 2 (g) plus upper o subscript 2 (g).

What is the definition of enriched uranium

What are the elements in the "dip" of the periodic table called? Transition Metals Pure Elements Gases Non Metals

The atomic number of lithium is 3. How many neutrons does an atom of lithium have if it is represented by the symbol shown below? 7Li A. 2 neutrons B. 13 neutrons C. 4 neutrons D. 7 neutrons

The compound, (nh4) 2s, can be used in analysis for trace amounts of metals present in a sample. what is its name?

What is the base unit of density?

I need a device that minimizes heat transfer and how it minimizes heat transfer. ill give brainliest to the best answer.

Hydrogen Sulfide decomposes according to the following reaction, for which Kc=9.3 x 10^-8 at 400 degrees Celsius. 2 H2S (g) ⇄ 2 H2 (g) + S2 (g) If 0.47 moles of H2S are placed in a 3.0 L container, and the system is allowed to reach equilibrium.

Q5.6. if calcium ions, each of which has a charge of + 2 (ca2+), moved out of a neuron, and no other ions were moving, what would be true?