An alkali metal, designated as M, forms a hydrated sulfate, M2SO4∙10

1.	An alkali metal, designated as M, forms a hydrated sulfate, M2SO4∙10H2O. Is the metal more likely to be sodium or potassium? Explain your reasoning.
Answer» Answer: Rewrite 1 as 12 . Check the MIDDLE term by MULTIPLYING 2ab 2 a B and compare this result with the middle term in the original expression. Simplify. Factor using the PERFECT square trinomial rule a2−2ab+b2=(a−b)2 a 2 - 2 a b + b 2 = ( a - b ) 2 , where a=x and b=−1 .

An alkali metal, designated as M, forms a hydrated sulfate, M2SO4∙10H2O. Is the metal more likely to be sodium or potassium? Explain your reasoning.

Answer»

Answer:

Rewrite 1 as 12 . Check the MIDDLE term by MULTIPLYING 2ab 2 a B and compare this result with the middle term in the original expression. Simplify. Factor using the PERFECT square trinomial rule a2−2ab+b2=(a−b)2 a 2 - 2 a b + b 2 = ( a - b ) 2 , where a=x and b=−1 .

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An alkali metal, designated as M, forms a hydrated sulfate, M2SO4∙10H2O. Is the metal more likely to be sodium or potassium? Explain your reasoning.

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