1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
harina [27]
3 years ago
12

When a substance goes from a gas to a liquid, it goes through a ________ change.

Chemistry
1 answer:
kolbaska11 [484]3 years ago
5 0
it goes through B. phase :)
You might be interested in
23.5 L of h2 is stored at a pressure of 58.7 Kpa what volume would the gas take up at stp
stepan [7]

Answer:-  13.6 L

Solution:- Volume of hydrogen gas at 58.7 Kpa is given as 23.5 L. It asks to calculate the volume of hydrogen gas at STP that is standard temperature and pressure. Since the problem does not talk about the original temperature so we would assume the constant temperature. So, it is Boyle's law.

Standard pressure is 1 atm that is 101.325 Kpa.

Boyle's law equation is:

P_1V_1=P_2V_2

From given information:-

P_1 = 58.7 Kpa

V_1 = 23.5 L

P_2 = 101.325 Kpa

V_2 = ?

Let's plug in the values and solve it for final volume.

58.7Kpa*23.5L=101.325Kpa*V_2

On rearranging the equation for V_2

V_2=\frac{58.7Kpa*23.5L}{101.325Kpa}

V_2 = 13.6 L

So, the volume of hydrogen gas at STP for the given information is 13.6 L.

3 0
3 years ago
The electron dot diagram for a neutral atom of chlorine (atomic number 17) is shown below.
Tom [10]
The answer is B ! Hoped I helped!
8 0
3 years ago
Read 2 more answers
How can you minimize a collision summary
ElenaW [278]

One of the ways to minimize a collision is to slow down: When you can't find an escape and you're definitely going to collide with something, you should slow your vehicle down as much as possible.

Hope this helps ^^

4 0
3 years ago
What is the ionic compound of Na^+ and CO3^2-
maksim [4K]

To find the chemical formula of an ionic compound, the first step is to find the charge of the 2 ions. As given already, the charge of sodium ion is 1+, and carbonate ion has a charge of 2-. We can picture it like that: Sodium ion loses 1 electron and carbonate ion gains 2.

The next step is to find how the 2 ions can lose and gain electrons equally. In this case, since each Na ion only loses 1 electron, it cannot satisfy the need of one carbonate ion, since they need 2, not 1. Therefore, 2 Na ions can cover the need of one carbonate ion. So, the ratio of Na to CO3 ion should be 2:1.

Now just combine the 2 ions, positive one at the front, which makes it NaCO3, make sure you do not add the charge and notice that CO3 is a molecule itself so do not remove the 3. Now because the ratio is 2:1, so the final formula is Na2CO3, no need to add 1 if the ratio is 1.

Your answer should be Na2CO3.

8 0
3 years ago
List two possible steps where impurities may be gained, which would appear to be an increase in copper
Arisa [49]

Answer:

i) During washing

ii) During Measurement

Explanation:

The two possible steps are :

<u>i) During washing </u>: during the washing method the residue may be not completely dried out and this residue ( water) will add up to the final product ( copper yield ) and this kind of error is called human error.

<u>ii) During measurement </u>: If the weighing instrument is faulty there might be addition  in value of the final copper yield which will see the final yield value > 100% . this error occurs when the initial value and final value is  been weighed

8 0
3 years ago
Other questions:
  • in the reaction mgcl2 + 2koh mg(oh)2 + 2kcl, if 3 moles mgcl2 are added to 4 moles koh what determines how much mg(oh)2 is made
    12·2 answers
  • Compare 2,500 centimeters to 25 dm how do each of these values compared to a meter elm what represents a longer length
    9·1 answer
  • A number should be rounded up if________? it is the first digit, the number after it is between 0 and 4, the number after is bet
    10·1 answer
  • What are the two main ways that minerals are classified
    13·1 answer
  • When two clear, colourless liquids are mixed together, a yellow precipitate is formed. This is an example of a
    11·1 answer
  • A student observed a blue
    14·1 answer
  • if the mass of a box was 400 grams, and the length is 2cm the width is 2cm and the height is 1cm. what is the density?
    15·1 answer
  • At what point would a chemical bond form between two atoms.
    15·1 answer
  • A 2. 75-l container filled with co2 gas at 25°c and 225 kpa pressure springs a leak. When the container is re-sealed, the pressu
    6·1 answer
  • A certain first order reaction has a half-life of 54. 3 s. How long will it take (in s) for the reactant concentration to decrea
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!