please help me within five minutes Science Assignment Help

please help me within five minutes Science Assignment Help. please help me within five minutes Science Assignment Help.

The rate constant is 2.84×10-3 L mol-1 s-1 at 335.0°C and 3.48×10-2 L mol-1 s-1 at 528.0°C.

Calculate the rate constant k at 413.0°C for this reaction.

Calculate the pre-exponential factor A for this reaction.

please help me within five minutes Science Assignment Help[supanova_question]

Chemistry one true/false Science Assignment Help

QUESTION 1

  1. The Lewis structure of the carbonate ion is an example of a resonance structure.

[supanova_question]

please answer on this question thanks Mathematics Assignment Help

<span style='font-size:14.0pt;
mso-bidi-font-size:12.0pt;mso-fareast-font-family:”Times New Roman”;mso-fareast-theme-font:
minor-fareast’>

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>x

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>y

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>-2

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>

 

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>-1

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>

 

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>0

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>

 

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>3

<p class="MsoNormal" align="center" style="margin-bottom:0in;margin-bottom:.0001pt;
text-align:center;line-height:150%”>

 

[supanova_question]

please help me within five minutes Science Assignment Help

Calculate the rate constant (with appropriate units) for a first order reaction which is 30.0% complete in 363 s.

How long will it take for the reaction to go to 95.5% completion? 

The rate-controlling step is the slowest step in a reaction mechanism. 

[supanova_question]

please help me within five minutes Science Assignment Help

 The activation energy can be decreased by addition of a catalyst. 

The energy of activation equals the energy released in an exothermic reaction.

The activation energy depends upon the concentrations of reactants. 

true or false.

[supanova_question]

[supanova_question]

Question5 Science Assignment Help

  1. Which of the molecules below must be shown with resonance structures?I. C2H2II. COIII. CO2

Question5 Science Assignment Help[supanova_question]

Question5 Chemistry Science Assignment Help

  1. Which of the molecules below must be shown with resonance structures?I. C2H2II. COIII. CO2

[supanova_question]

The molecular geometry of Cl2 is: Science Assignment Help

  1. The molecular geometry of Cl2 is:

[supanova_question]

Question 9 chemistry Science Assignment Help

  1. The molecule H2O is arranged in a linear molecular geometry.

[supanova_question]

Chemistry TRUE/ FALSE Science Assignment Help

  1. The molecule BH3 is arranged in a trigonal planar molecular geometry.
  1. Barium is an exception to the octet rule and will hold a maximum of four electrons in its valence shell.

[supanova_question]

please help me within five minutes Science Assignment Help

please help me within five minutes Science Assignment Help