Giving brainliest ✅✅ 5. Which reaction is an example of heterogeneous catalysis? (1 point)

A Ethene gas reacts with hydrogen gas by using a nickel catalyst.

B Hydrogen peroxide decomposes by using an aqueous iodide ion catalyst.

C Formic acid decomposes by using an acidic catalyst.

D Sulfur dioxide gas is converted to sulfur trioxide gas by using nitrogen chloride gas.

2. how is heavy water different from normal water

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.