1 Po Khimii 11 Klass Novoshinskii — Prakticheskaia Rabota

Observing how varying the concentration of an acid affects the speed of gas evolution.

To experimentally study the factors that influence the rate of chemical reactions. Key Experiments: prakticheskaia rabota 1 po khimii 11 klass novoshinskii

A table with three columns: What was done , Observations (what you saw), and Equations/Conclusions . Observing how varying the concentration of an acid

Comparing the reaction rate of a solid chunk of a substance (like marble or zinc) versus its powdered form. Observations (what you saw)

Demonstrating that increasing temperature typically accelerates the reaction. Catalysts: Using substances like manganese dioxide ( MnO2cap M n cap O sub 2 ) to speed up the decomposition of hydrogen peroxide ( H2O2cap H sub 2 cap O sub 2 Topic: Qualitative Composition of Organic Substances

Observing how varying the concentration of an acid affects the speed of gas evolution.

To experimentally study the factors that influence the rate of chemical reactions. Key Experiments:

A table with three columns: What was done , Observations (what you saw), and Equations/Conclusions .

Comparing the reaction rate of a solid chunk of a substance (like marble or zinc) versus its powdered form.

Demonstrating that increasing temperature typically accelerates the reaction. Catalysts: Using substances like manganese dioxide ( MnO2cap M n cap O sub 2 ) to speed up the decomposition of hydrogen peroxide ( H2O2cap H sub 2 cap O sub 2 Topic: Qualitative Composition of Organic Substances