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What is the difference between a heterogeneous catalyst and a homogeneous catalyst?

Homogeneous catalyst - catalyst is in the same phase as the reactants. Heterogeneous catalyst - catalyst is in a different phase as the reactants. What ...

Answered by Katie W. • Chemistry tutor

6643 Views

Compare the advantages and disadvantages of using bioethanol over fossil fuels.

Bioethanol is a renewable fuel produced from plants, which photosynthesise to grow, taking in carbon dioxide and producing oxygen. This means there is no net increase in carbon dioxide, which is a greenho...

Answered by Michael I. • Chemistry tutor

4317 Views

What mass of calcium carbonate would you need to react with dilute hydrochloric acid to produce 10 g calcium chloride?

Equation: CaCO₃ + 2HCl --> CaCl₂ + CO₂ + H₂O [Ca_40.1 C₁₂ O₁₆ Cl_35.5]ANSWER: 9.1 g

Answered by Sam H. • Chemistry tutor

2829 Views

How would you check for halides within a compound and differentiate between them?

Add silver nitrate to the aqueous solution. If a precipitate forms then solution contains halide ions. Chloride: white. Bromide: cream. Iodide: pale yellow. Adding dilute ammonia will dissolve the chlori...

Answered by Artem N. • Chemistry tutor

2336 Views

How does an increase in temperature affect the rate of a reaction?

Increasing the temperature of a reaction means increasing the kinetic energy of each particle in the reaction. Increasing a particle's kinetic energy means the particle is moving faster ('Kinetic' indicat...

Answered by Kazimierz W. • Chemistry tutor

3113 Views