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Mkey [24]
3 years ago
13

Express the polynomial 6e^2+3e^3+1 in standard form and then classify it.

Mathematics
1 answer:
Travka [436]3 years ago
4 0
3e^3 + 6e^2 +1
This is a third degree trinomial
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How much Zn and how much HCl should be used to produce 1.5 g ZnCl2
tatuchka [14]

Answer:

  • 0.71963 g of Zn
  • 0.80256 g of HCl

Step-by-step explanation:

The required mass of reactants can be computed from the number of moles of product.

  moles of ZnCl₂ = (1.5 g)/(136.282 g) ≈ 0.0110066 moles

Then the mass of Zn required is ...

  mass of Zn = (0.0110066 mol)(65.382 g/mol) = 0.71963 g

Two moles of HCl are used in the reaction with each mole of Zn, so the mass of HCl required is ...

  mass of HCl = 2(0.0110066 mol)(36.458 g/mol) = 0.80256 g

_____

<em>Comment</em>

The discrepancy in the last two decimal places of the weights above versus the calculator output below comes from rounding of moles of Zn to 4 significant digits, instead of 5 or more. The number of moles of ZnCl₂ is closer to 0.0110066.

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3 years ago
Help me plz :((((((​
Softa [21]

Answer:

160 degrees

Step-by-step explanation:

8 0
3 years ago
HELP, PLEASE, WILL GIVE BRAINLIEST
Juli2301 [7.4K]
The answer would be B
Because $2.10×7 = 14.7 and $1.85×6 = 11.1 so the new were add 14.7+11.1 Hope this helps
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Write an equation in slope-intercept form of the line that passes through the givin point and is parcel to the graph of the give
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The answer is X=4.

It is both parallel to x=-3 and passes through (4,2)

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Wright 6.789 in word form
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Six point seven hundred eighty-nine thousandths.

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