What is the significant digit in 23.45

A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 ml at 157 kpa and 20◦c. what is the molar mass and identity of the gas?

Calculate the mass of sodium chloride produced when 5.50 moles of sodium reacts in excess chlorine gas

A student needs to dilute a 0.46 M Pb (NO3) 2 solution to make 55.0 mL of 0.14 M Pb (NO 3) 2. Set up the calculation by placing the values with the correct units into the equation. Then, calculate the volume, in milliliters, of the 0.

As a sample of matter is cooled, its particles

How does a system at equilibrium respond to the addition of more reactant

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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