A) a column
example: earth alkaline metals
Answer:
o increase the rate of chemical reaction
Explanation:
Enzymes are chemical catalysts that speed up chemical reactions by lowering their activation energy. Enzymes have an active site with a unique chemical environment that fits particular chemical reactants for that enzyme, called substrates. Enzymes and substrates are thought to bind according to an induced-fit model.
Answer:
Option a, centimeter
Explanation:
Foot, Inch and Yard are units used in America, UK, and other english-speaking countries.
These countries are currently reviewing the possibility of adapting the measures to the SI. The centimeter is a unit derived from the meter, base unit for measuring length in the SI, and corresponds to the cgs system, where in addition to the centimeter, is constituted by gram and second units
Activation energy?? The energy needed to start a chemical reaction is called activation energy