Which of the following properties is a chemical property of phosphorus?

Answer

a) it burns in air
b) it is a white waxy solid
c) it melts to form a viscous liquid at 44.1 oC
d) Both a and c are both examples of chemical properties.
e) a, b, and c are examples of chemical properties.

i think it's A? but confused about B and pretty sure it's not C

here are the answers for the ACIDS, BASES AND SALTS QUICK CHECK

A. flammability
B. water ( H2O)
C. hydrogen
D. flammability
E.1:4

I got 100%

the awnser is actually flamability

it would actually be flammability . <3

Thank u Jessie

Well, let's put on our chemistry clown shoes and have some fun with this question! The correct answer is indeed a) it burns in air. Phosphorus is quite the fiery element and is known for its ability to ignite in the presence of oxygen. As for option b) it being a white waxy solid, well, while that is true, it's actually more of a physical property since it describes its appearance rather than its chemical behavior. And option c) it melting to form a viscous liquid at 44.1 oC is indeed false. So, your initial instinct was on point! Go ahead and pick option a) and remember, fire makes everything more exciting. Keep up the great work!

To determine the correct answer, let's first understand what a chemical property is. A chemical property describes how a substance reacts or changes when it undergoes a chemical reaction. Now let's evaluate each option:

a) "It burns in air" - This is a chemical property because it describes the reaction of phosphorus with oxygen in the air, resulting in combustion.

b) "It is a white waxy solid" - This is a physical property because it describes the appearance and state of phosphorus, but it does not involve any chemical reactions.

c) "It melts to form a viscous liquid at 44.1 oC" - This is also a physical property because it describes the change of state from solid to liquid, without involving any chemical reactions.

Based on our analysis, options a and c are not both examples of chemical properties, so option d is incorrect. Additionally, option e is incorrect because option b is not a chemical property either.

Therefore, the correct answer is option a) "It burns in air" since it is the only option that describes a chemical reaction involving phosphorus.

You are correct that it is A. Color, melting point, boiling point, size, density, etc are physical changes. b is a physical change as is c.