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) one of the products is an element
B) neither of the products can be an element
C) ammonia cannot be an element
D) both products are elements
E) gases do not produce solids
Correct Answer:
Verified
Q19: Which of the following is a chemical
Q20: Systematic errors are consequence of inherent errors
Q21: Which of the following is a compound?
A)water
B)oxygen
C)heat
D)salad
Q22: Which of the following represents a base
Q23: Water is:
A)a mixture
B)a compound
C)an element
D)a molecule
E)an atom
Q25: The content of a container filled with
Q26: The prefix "milli" and the prefix "micro"
Q27: The quantity of matter in an object
Q28: Which of the following is longest?
A)3.0 nm
B)300
Q29: Sulfuric acid is:
A)a homogeneous mixture
B)a compound
C)an element
D)a
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