Calculate the average atomic mass for neon if its abundance in nature is 90.5% neon-20, 0.3% neon-21, and 9.2% neon-22

A sample of chlorine gas occupies 350.0 ml when its pressure is 735 mm hg. how many milliliters will is occupy when its pressure is 755 mm hg

10) If a chemical bond is formed or destroyed, what changes? a. Energy is absorbed or released. b. Protons are absorbed. c. Neutrons will vary. d. Energy is destroyed. e. Protons are released.

A 0.08541 g sample of gas occupies 10.0-ml at 288.5 k and 1.10 atm. upon further analysis, the compound is found to be 13.068% c and 86.932% br. what is the molecular formula of the compound? (order: c, x)

How can you raise the average kinetic energy of the water molecules in a glass of water?

Examplle of exchange reaction

Solid lead IV oxide decomposes into solid lead and oxygen gas.

Ab2 has a molar solubility of 3.72*10-4 m. what is the value of the solubility product constant for ab2? express your answer numerically.

Thermal decomposition of sodium azide (NaN₃) into nitrogen gas and sodium metal is used to inflate car airbags. The reaction proceeds by the following chemical reaction. 2NaN₃ (s) ⟶3N₂ (g) + 2Na (s) How many grams of NaN₃ are need to inflate a 10.

Is salt water acidic, basic or neutral

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