Potassium bicarbonate decomposes into potassium carbonate, carbon dioxide and water. 2KHCO3 (s) → K2CO3 (s) + H2O (g) + CO2(g)
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The KHCO3 solid was placed in a container that weighed 31.747 g empty. The total mass of the container and solid was 33.975 g. If 1.448 g of K2CO3 was produced after heating, what is the percent yield?

SHOW ALL WORK TO RECEIVE CREDIT AND ROUND YOUR ANSWER TO THE CORRECT NUMBER OF SIG FIGS.

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal.a.added more engine powerb.activated a connection to the pedalc.stalled the engined.released a connection to the pedal

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

What is the subscript for oxygen in its molecular formula