Rate of reaction, Photo 3 of 3

Rate of reaction, Photo 3 of 3

C028/0755 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.0MB

Downloadable file size: 6.4MB

Price image Pricing

Please login to use the price calculator


Credit: GIPhotoStock/SCIENCE PHOTO LIBRARY

Caption: Rate of reaction, Photo 3 of 3. Reaction of chalk with hydrochloric acid is used to demonstrate that the rate of reaction depends on surface area and on concentration. Chalk is calcium carbonate, it reacts with hydrochloric acid to produce carbon dioxide bubbles: CaCO3 + HCl -> CaCl2 + H2O + CO2. This is an example of a double displacement reaction. In Photo 1, a piece of chalk is placed in a 0.1 M solution of hydrochloric acid. In Photo 2, chalk is ground and the reaction rate is higher in an HCl solution of the same concentration. In Photo 3, again a piece of chalk is used but the concentration of HCl is increased to 1 M, resulting in a higher rate of reaction compared to Photo 1. Photo 3 of 3.

Release details: Model release not required. Property release not required.

Keywords: acid, bubbles, caco3, calcium carbonate, carbon dioxide, chalk, chemical, chemistry, co2, double displacement reaction, hcl, hydrochloric acid, rate of reaction, reaction, reaction rate, replacement reaction, sequence, series, solution, test tube

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.