Entering chemical equations When entering chemical equations, please follow the

Question

Entering chemical equations When entering chemical equations, please follow the following formatting guidelines Add phases to all chemical reactions unless asked otherwise. When adding phases, make sure not to place them as a subscript. Do not stack charges and subscripts. To add a charge to an ion with a subscript, first enter the subscript. For example, to type SO42 start by typing SO4 .Then use the arrow key to arrow over before adding a superscript with the charge. If you make a formatting error, you will see an message such as "Check your placement of subscripts and superscripts." or "There is an error in your submission. Make sure you have formatted it properly." You will not lose any credit, but the answer will need to be edited and re-submitted.

Explanation / Answer

A)

BeCl2 + NaOH --> Be+2 + Cl- + Na+ + OH- ; Be+2 and OH- will precipitate

so

BeCl2(aq) + NaOH(aq) --> Be(OH)(s) + 2NaCl(aq)

balance Na

BeCl2(aq) + 2NaOH(aq) --> Be(OH)(s) + 2NaCl(aq)

you missed the balane in bold

B)

Mg+2 + SO4-2 + Ba+2 + NO3-

BaSO4 is likely to precipitate

Net ionic --> must contain ONLY ions reacting

You are correct, Ba+2 and SO4-2 precipitate

BUT, you stated Ba2 instead of Ba+2

so, just fix it

Ba+2(aq) + SO4-2(aq) = BaSO4(s)

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