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qwelly [4]
3 years ago
10

Plzz help i will give brillants and stars and thx.

Chemistry
2 answers:
givi [52]3 years ago
5 0
Vaporization turns liquid into gas,about the energy one I’m not completely sure but it’s energy added the particles slow down/confiscation transforms a gas into a liquid energy removed and the particles speed up
dalvyx [7]3 years ago
3 0
Hdhdjejdhebdehxhshwhdb d nonsense
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How much heat is lost when 1277 g of H20 at 400 K is changed into ice at 263 K? Plz help I’ll give you brainliest 20 points
OLga [1]

The heat lost is -7.32*10^-^5J

The heat lost when the ice is cooled from 400k to 263K can be calculated using the formula of heat transfer.

<h3>Heat Transfer</h3>

This is the heat transferred from a body of higher temperature to a body of lower temperature.

Q = mc(\delta)T

  • Q = Heat Transfer
  • m = mass = 1277g
  • ΔT  = change in temperature

\delta T = (400 - 273) - (263 - 273) = \\&#10;\delta T = T_2 - T_1\\&#10;\delta T = -10 - 127\\&#10;\delta T = -137^0C

We converted the temperature from kelvin scale into Celsius scale and find the change in temperature.

Solving for heat transfer

Q = mc\delta T\\&#10;Q = 1277 * 4.186 * -137\\&#10;Q = -732336.514J

The heat loss is approximately -7.32*10^-^5J

Learn more on heat transfer here;

brainly.com/question/16055406

6 0
2 years ago
Use Dot and cross method to show the bonding of the atoms and state the number of atoms of each element present
goldfiish [28.3K]

Answer:

Check the attached one..I only draw the Dot method of Magnesium and Fluorine.. since i love chemistry ..Hope this helps you...Balance you have to do it yourself..If you didn't get the answer let me know in the comments..But you have try okay..

5 0
2 years ago
What factor affects the solubility of all solutes, whether solid, liquid, and gaseous? -pressure -temperature -volume -number of
Ratling [72]

Answer:

temperature

Explanation:

  • The solubility is the maximum amount of the substance that will be dissolved in water given the amount of the solvent at a specif temperatures and thus there are factors in which the solubility depends as the temperatures.  
  • The temperature affects the solids and liquids and pressure the gases. The <u>solubility </u>of the <u>organic compounds also increases with temperature changes.</u>
4 0
2 years ago
How many grams of KNO3, are needed to create 675.0 mL with a concentration of 1.71 M
valkas [14]

Answer:

Бардык белгилүү авиация мыйзамдарына ылайык, аары учуу мүмкүнчүлүгү жок. Канаттары өтө эле кичинекей, семиз денесин чече албайт. Албетте, аары баары бир учат. Себеби аарылар адам мүмкүн эмес деп эсептеген нерсеге маани бербейт.

Explanation:

Канаттары өтө эле кичинекей, семиз денесин чече албайт. Албетте, аары баары бир учат. Себеби аарылар адам мүмкүн эмес деп эсептеген нерсеге маани бербейт.

4 0
2 years ago
What is the reaction quotient?
ikadub [295]

Answer:

A. It measures the [products] / [reactants].

Explanation:

  • The reaction quotient aids in figuring out which direction a reaction is likely to proceed, given either the pressures or the concentrations of the reactants and the products.
  • It is calculated from the concentration of the products and reactants at mixing up.
  • Reaction quotient (Q) =  [products] / [reactants]

So, the right choice answer:

A. It measures the [products] / [reactants].

5 0
2 years ago
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