Login
Premium
Home Question Bank Chemistry Archive 2024 December 10

Chemistry Questions from Dec 10,2024

Browse the Chemistry Q&A Archive for Dec 10,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

error msg
Octane \( \mathrm{C}_{8} \mathrm{H}_{18} \) is one of the compounds in gasoline. The products of the burning of octane are water and carbon dioxide. In this reaction, which contain more energy, the bonds in the reactants or the bonds in the products? Explain. \( 2 \mathrm{C}_{4} \mathrm{H}_{10}+18 \mathrm{O}_{2} \rightarrow 8 \mathrm{CO}_{2}+10 \mathrm{H}_{2} \mathrm{O} \) What type of reaction is described by this reaction? synthesis combustion single replacement decomposition double replacement Which equation describes a synthesis? \[ \begin{array}{l}\mathrm{Ba}(\mathrm{OH})_{2}+2 \mathrm{HCl} \rightarrow \mathrm{BaCl}_{2}+2 \mathrm{H}_{2} \mathrm{O} \\ \mathrm{CH}_{4}+2 \mathrm{O}_{2} \rightarrow \mathrm{CO}_{2}+2 \mathrm{H}_{2} \mathrm{O} \\ \mathrm{Zn}+\mathrm{CuSO}_{4} \rightarrow \mathrm{Cu}+2 n \mathrm{ZnO}_{4} \\ 2 \mathrm{H}_{2}+\mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O} \\ \mathrm{CaCO}_{3} \rightarrow \mathrm{CaO}+\mathrm{CO}_{2}\end{array} \] Answer the following questions based on this equation: \( \mathrm{C}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}(\mathrm{g})+\mathrm{Heat} \rightleftharpoons \mathrm{CO}(\mathrm{g})+\mathrm{H}_{2}(\mathrm{~g}) \) (Use Le Chatelier's principle.) a. How would you adjust the temperature to increase the amount of products? (2pts) b. Does the removal of hydrogen gas as it is produced shift the reaction to the left or the right? (1pt) What takes place at chemical equilibrium? Reactants form more quickly than products. Readucts form more quickly than reactants. Reactants and products form at the same rate. In general, an increase in temperature increases the reaction rate. decreases the reaction rate. does not affect reaction rate. acts as a catalyst. What type of reaction always releases energy? endothermic decomposition exothermic oxidation-reduction How are reactions related to chemical bonds? Bonds in the reactants are broken, and bonds in the products are formed. Bonds in the products are broken, and bonds in the reactants are formed. Bonds are formed in both the reactants and the products. La electrolisis es un proceso quimico por medio del cual una sustancia o un cuerpo inmersos en una disolución se descomponen por la acción de la una corriente eléctrica continua. En un proceso de obtención de oxigeno a partir de la electrolisis de agua se pasa una corriente de 3.78 A , a través de una celda electrolítica por 117.68 minutos, de acuerdo a la siguiente semirreacción de reducción del oxigeno. \[ 4 e+O_{2(g)}^{0} \rightarrow 2 O_{(g)}^{2} \] ¿Cuántos gramos de oxigeno se pueden obtener de este proceso? Tome la constante de Faraday como 96500 C y el peso molecular: O: \( 16 \mathrm{~g} / \mathrm{mol} \) What does the number of proton tell us?
Prev 1 2 3 4 5 6
...
8 Next
1 2 3 4 5 6
...
8
Prev Next
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy