PLEASE HELP ASAP TAKING A TEST!

Chemistry

1 answer:

pav-90 [236]3 years ago

6 0

Answer:

As a substance changes from a solid to a liquid to a gas, its molecules first the molecules are moving fast enough, they are able to "escape." They leave the surface of the liquid as gas molecules. Evaporation is not the only process that can change a substance from a liquid to a gas. The same change can occur through boiling.

Explanation:

You might be interested in

f a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?

coldgirl [10]

The heat flows between the two by the cup. The cup gives the coffee heat to the person and vise versa.

Hope this helps!

3 0

3 years ago

Hello please please help me

olga nikolaevna [1]

Answer:

Option-A is the correct answer

Explanation:

Lithium belong to group 1 metals. Hence, it can loose one electron to form lithium ion i.e. Li⁺¹ or Li⁺

While, Nitrogen is non-metal and hence has the ability to gain the electron lost by lithium metal. Furthermore, Nitrogen can gain maximum 3 electrons to acheive noble gas configuration. Hence, three Li atoms will loose their electrons and Nitrogen will gain those three electrons to form nitride ion i.e. N³⁻.

4 0

2 years ago

If I have a 50 liter container that holds 45 moles of gas at a temperature of 200 0C, what is the pressure inside the container?

Bezzdna [24]

hdhjdbdhjssnmsmsnsjsbxbhow?

8 0

3 years ago

Which of the ffamily contains liquids, solids and gases?

Naddik [55]

The hydrogen one because who doesnt like snoballs'

7 0

3 years ago

The rate of a certain reaction is given by the following rate law: rate Use this information to answer the question below. At a

AleksAgata [21]

Answer:

Initial rate of the reaction when concentration of hydrogen gas is doubled will be $3.2\times 10^6 M/s$ .

Explanation:

$N_2+3H_2\rightarrow 2NH_3$

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

Initial rate of the reaction = R = $4.0\times 10^5 M/s$