Question

From ammonia gas, one can obtain two different gases, each of which is a pure substance. Using only this information, it can be said with certainty that: A. ammonia cannot be an element B. neither of the products can be an element C. one of the products is an element D. both products are elements

Answer 1

Answer:

We can say with certainty, A.

Explanation:

The reaction is: 2NH3 = N2 + 3H2

Let's start the explanation with this affirmation: "The elements are pure substances"

So, we can say that:

A. Ammonia can't be an element because the elements are pure substances and a pure substance can't be divided into another substances.

Answer 2

Answer:

ammonia cannot be an element

Explanation:

An element is the smallest unit of a substance, capable of independent existence and cannot be broken down into smaller units. All the atoms in an element are exactly the same.

Ammonia cannot be an element since it can be broken down to give two different gases with different atomic compositions, each of which is a pure substance.