What kind of bond is present in HCl

For which of these is there an increase in entropy? KCI (aq) + AgNO3 (aq) KNO3 (aq) + AgCI (s) NaCl (s) NaCl (aq) 2NaOH (aq) + CO2 (g) Na2CO3 (aq) + H20 (1) C2H5OH (g) C2H5OH (I)

A sample of helium has a volume of 5 liters and a pressure of 699 mmHg. If the final volume is 5.7 Liters, its final temperature 303 K, and the final pressure 800 mmHg, what was the initial temperature of helium?

A mineral is a naturally occurring solid with a regular, repeating structure. true or false

Describe how you can prove that a bicycle is matter

when a substance donates a proton during a chemical reaction, that substance can be classified as a (an) ___?

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

The process of gathering knowledge about the natural world

4. Which of the following elements has the greatest electronegativity? a. Krypton b. Bromine c. Phosphorous d. Sulfur

In which orbital does an electron in a nitrogen atom experience the greatest shielding? In which orbital does an electron in a nitrogen atom experience the greatest shielding? 2s 2p 1s 3s 3p