Describe three similarities and one difference in the reactions of lithium and potassium with water.

1 answer:

4 0

I hope this helps you
THEY BOTH React violently with water
THEY Both: Give off heat 
THEY Both: Give off light 

Lithium will float on the water and become engulfed in flame and then die off, and Potassium will become engulfed in flames and then explode.

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How many moles are in 187.54 grams of magnesium chlorate?

Svetlanka [38]

Hey there!

Magnesium chlorate: Mg(ClO₃)₂

Find molar mass.

Mg: 1 x 24.305 = 24.305

Cl: 2 x 35.453 = 70.906

O: 6 x 16 = 96

------------------------------------

191.211 g/mol

We have 187.54 grams.

187.54 ÷ 191.211 = 0.9808

There are 0.9808 moles in 187.54 grams of magnesium chlorate.

Hope this helps!

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