Question

2. Catalyst and enzyme
3. Positive catalyst and negative
4. Combination reaction and dec
5. Displacement reaction and do
5. Oxidation and reduction
-. Oxidising agent and reducing​

Answer 1

Explanation:

Catalysts are substances that increase or decrease the rate of a chemical reaction but remain unchanged. Enzymes are proteins that increase rate of chemical reactions converting substrate into product.

catalyst which increases the rate of reaction is called positive catalyst. Such catalyst decreases activation energy by accepting a smaller path, so rate of reaction is increased. ... A catalyst which decreases or retards the rate of reaction is called negative catalysts.

combination reaction two or more substances (elements or compunds)combine together to form a single product (compound)but in decomposition reaction a single substance (compound) break down to give two or more substances (elements or compounds) i.e. they are opposite of each othe

Oxidation is the loss of electrons or an increase in the oxidation state of an atom by another atom, an ion, or a molecule. Reduction is the gain of electrons or a decrease in the oxidation state of an atom by another atom, an ion, or a molecule.