Tanya was measuring the ability of different substances to dissolve in water. she mixed in each test tube the same amount of water and substance. she then measured the level of undissolved solute at the bottom of the test tube once it settled. her results are in the chart. which best describes through solutions? a)substance w has the greatest solubility. b)substance x has the greatest solubility. c)substance y has the greatest solubility. d)substance z has the greatest solubility.

Option (D) is the correct answer.

Explanation:

It is known that 1 centimeter contains 10 millimeter. Therefore, unit millimeter (mm) is smaller than centimeter (cm).

So, when different substances were dissolved in water then according to the given chart, substance which shows smallest number in millimeters will have the greatest solubility.

Thus, we can conclude that substance Z has the greatest solubility.

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.

am i too late?

explanation: