( QUESTION) Physical properties are- A. traits you can assess using your 5 senses (see, hear, smell, touch, hear)

B. traits that must be tested in a lab by a scientist

C. difficult to explain

D. essential properties of matter

The correct answer is A. traits you can assess using your 5 senses (see, hear, smell, touch, hear)

Explanation

for example, physical property, dealing with color, solubility, odor, hardness, density, melting point, boiling point, etc..!

hope this helps <3

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.