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sergeinik [125]
3 years ago
14

8Ft 14 ft What is the Surface Area?

Chemistry
1 answer:
nadezda [96]3 years ago
7 0

112

8x14=122ft squared
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Not sure about 2 or 3 but I believe that for number 1 is B or claim 2!!
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A substance that undergoes a chemical change is still the same substance after the change
Alexxx [7]
After a chemical change, the substance always changes. It's only after a physical change that the substance does not change. Hope I helped :)
8 0
3 years ago
To determine the molar mass of an unknown organic acid, HA, a 1.056 g sample is titrated with standardized NaOH. Calculate the m
meriva

Explanation:

Equation for the given reaction is as follows.

     HA(aq) + NaOH(aq) \rightarrow NaA(aq) + H_{2}O(l)

Therefore, moles of NaOH and HA are calculated as follows.

     Moles of NaOH = 0.256 M \times 0.03378 L

                                = 8.64 \times 10^{-3}

                                = 0.00864 mol

     Moles of HA = 0.00864

Also,  moles = \frac{\text{weight}}{\text{molecular weight}}

      Molecular weight = \frac{1.056 g}{0.00864 mol}

                                    = 122.22 g/mol

Thus, we can conclude that molar mass of given unknown organic acid is 122.22 g/mol.

4 0
3 years ago
Write the net ionic equation:. . A solution of diamminesilver(I) chloride is treated with dilute nitric acid
zimovet [89]
<span> Ag(NH3)2Cl + 3HNO3 = AgNO3 +2NH4NO3 + HCl </span>
<span>or
 Ag(NH3)2Cl + HNO3 = Ag(NH3)2NO3 + HCl  this the complete balanced equation
now remove spectator ions to get net ionic equation
so 
</span>
<span> 2H+ + 2NO3- + [Ag(NH3)2]+ Cl- -> AgCl + 2NH4+ + 2NO3-  2NO3-  2H+  [Ag(NH3)2]+ + Cl- -> AgCl + 2NH4+
</span>hope it helps
5 0
3 years ago
Read 2 more answers
A gas is at 1.33 atm of pressure and a volume of 682 mL. What will the pressure be if the volume is reduced to 0.419 L?
statuscvo [17]

At constant temperature, if the volume of the gas decreased to the given value, the pressure increases to 2.16atm.

<h3>What is Boyle's law?</h3>

Boyle's law simply states that "the volume of any given quantity of gas is inversely proportional to its pressure as long as temperature remains constant.

Boyle's law is expressed as;

P₁V₁ = P₂V₂

Where P₁ is Initial Pressure, V₁ is Initial volume, P₂ is Final Pressure and V₂ is Final volume.

Given the data in the question question;

  • Initial volume of the gas V₁ = 682mL = 0.682L
  • Initial pressure of the gas P₁ = 1.33atm
  • Final volume of the gas V₂ = 0.419L
  • Final pressure of the gas P₂ = ?

P₁V₁ = P₂V₂

P₂ = P₁V₁ / V₂

P₂ = ( 1.33atm × 0.682L) / 0.419L

P₂ = 0.90706Latm / 0.419L

P₂ = 2.16atm

Therefore, at constant temperature, if the volume of the gas decreased to the given value, the pressure increases to 2.16atm.

Learn more about Boyle's law here: brainly.com/question/1437490

#SPJ1

7 0
2 years ago
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