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pochemuha
3 years ago
6

What does 351 = (y × 8) + 7 equal

Mathematics
3 answers:
weeeeeb [17]3 years ago
8 0

{\huge {\mathfrak {Answer :-}}}

➡️ (y * 8) + 7 = 351

Or, 8y + 7 = 351

Or, 8y = 351 - 7 = 344

Or, y = 344/8 = 43.

➡️ Hence, y = 43.

That's it..

bogdanovich [222]3 years ago
6 0

Simplify brackets

351 = y * 8 + 7

Regroup terms

351 = 8y + 7

Subtract 7 from both sides

351 - 7 = 8y

Simplify 351 - 7 to 344

344 = 8y

Divide both sides by 8

344/8 = y

Simplify 344/8 to 43

43 = y

Switch sides

<u>y = 43</u>

Art [367]3 years ago
5 0

I think you mean what does y equal in this equation but here is an explanation

351=(8y)+7

351-7=8y

344=8y

y=344/8

y=43

Hope that helped

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For the reaction 2Fe + O2 → 2FeO, how many grams of iron oxide are produced from 42.4 mol of iron?
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In the balanced reaction

2 Fe + O₂   →   2 FeO

2 moles of iron (Fe) react with 1 mole of molecular oxygen (O₂) to produce 2 moles of iron oxide (FeO). The ratio of Fe to FeO is 1-to-1, so if one starts with 42.4 mol of Fe, one will end up with the same amount of FeO, 42.4 mol.

Look up the molar mass of Fe and O:

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Then the molar mass of FeO is approximately 71.835 g/mol, and so the mass of 42.4 mol of FeO is

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I don’t really know exactly to what degree you need to put in your solution. But I rounded to the nearest tenth degree.
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Will give any wanted points!! help quick!!
gayaneshka [121]

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