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
Law Incorporation [45]
3 years ago
8

Read the excerpt from a reading passage titled "Matter and Energy: Evaporation and Condensation." Condensation An example of con

densation can be seen when drops of water form on the outside of a glass of ice water. The drops seem to appear from nowhere, but they actually form from water vapor in the air. The dew that forms on grass overnight is another example of condensation. Condensation happens when molecules in a gas cool down. As the molecules lose heat, they lose energy. As a result they slow down. They move closer to other gas molecules. Finally these molecules collect together to form a liquid. (Source: Encyclopaedia Britannica, adapted by Newsela staff, 06/02/2017) Describe the process of how dew forms on a blade of grass.
A. Dew forms on grass as water vapor warms up on blades of grass overnight.
B. Dew forms on grass when water vapor forms when molecules cool and separate.
C. Dew forms on grass when water vapor forms when molecules cool and join together.
D. Dew forms on grass when water vapor forms when liquid cools and becomes a gas.
Chemistry
1 answer:
mestny [16]3 years ago
3 0

Answer : The correct option is (C) : Dew forms on grass when water vapor forms when molecules cool and join together.

Explanation :

Air contains a small amount of water vapors. When the temperature of an object is lowered than the ambient temperature, the vapors get condensed and small water droplets are formed on the object.

During night time, when the temperature is lowered, the blades of grass become cool. As a result, the vapor molecules slow down and eventually come close to each other. They join together to form liquid water which gets deposited on the blades in the form of dew drops.

The only option that explains this process is option C.

You might be interested in
1. What Volume of HCl is generated if 3.44 g of Cl2 are reacted at STP? 2. What volume does 4.87 mol of Kr have at STP? 3. What
IgorLugansk [536]

Answer:

1. 2.17 dm3 VOLUME OF HCl IS PRODUCED WHEN 3.44 g OF Cl2 REACT AT STP

2. 4.87 MOLE OF Kr AT STP CONTAINS 109.088 dm3 .

3. THE PRESSURE WHEN 3.44 g OF Cl2 are reacted at 4.55 L AT 455 K IS 0.77 atm

Explanation:

1 Volume of HCl if 3.44 g of Cl2 are reacted at STP?

Equation for the reaction:

H2 + Cl2 ---------> 2HCl

1 mole of Cl2 reacts to form 2 mole of HCl

At STP, 1 mole of a gas is equal to the molar mass of the gas sample

35.5 * 2 g of Cl2 reacts to form 2 mole of HCl

3.44 g of Cl2 will react to form  ( 3.44 * 2 / 71 ) mole of HCl

= 0.0969 mole of HCl

1 mole of HCl = 22.4 dm3

0.0969 mole of HCl = ( 22.4 * 0.0969 / 1)

= 2.17056 dm3

The volume of HCl is 2.17 dm3 when 3.44 g of Cl2 are reacted at STP.

2. What volume does 4.87 mol of Kr have at STP?

1 mole of a substance is 22.4 dm3 of the sample

1 mole of Kr = 22.4 dm3

4.87 mole of  Kr = 4.87 * 22.4

= 109.088 dm3

4.87 mole of Kr at STP contains 109.088 dm3 volume

3. Whta pressure of HCl is generated if 3.44 g of Cl2 are reacted at 4.55 L at 455 K

Using the formula:

PV = nRT

V = 4.55 L

R = 0.082 L atm/ mol K

T = 455 K

m = 3.44 g

n = mass / molar mass

molar mass = ( 1 + 35.5) = 36.5 g/mol

n = 3.44 g / 36.5 g/mol

n = 0.094 mole

P = nRT / V

P = 0.094 * 0.082 * 455 / 4.55

P = 3.50714 / 4.55

P = 0.7708 atm

The pressure of HCl if 3.44 g of Cl2 are reacted at 4.55 L and 455 K is 0.7708 atm.

8 0
2 years ago
What can be said about the reactants and the products in this reaction?
lord [1]

Answer:

Explanation:

Allstate

4 0
3 years ago
What temperature creates hail
oksano4ka [1.4K]

Answer:

32 °F

Formation. Hail forms in strong thunderstorm clouds, particularly those with intense updrafts, high liquid water content, great vertical extent, large water droplets, and where a good portion of the cloud layer is below freezing 0 °C (32 °F).

Explanation:

brainlist me and that's all I know and we have the same module I guess

4 0
2 years ago
The unique odors and flavors of many fruits are primarily due to small quantities of a certain class of organic compounds. The e
SpyIntel [72]
Based on the diagram shown, a numerical setup for calculating the gram-formula mass for reactant 1 would be :
6(1) + 2(12) + 16

Hope this helps
5 0
2 years ago
What’s the compound name Mg2CL
Komok [63]

Magnesium dichloride or Magnesium chloride

4 0
2 years ago
Other questions:
  • How to predict the product of Al+Cl2
    12·1 answer
  • What force is required to do 60 Joules of work in sliding an object 10 meters across a level floor?
    15·1 answer
  • What is the relationship between molar mass in grams per mole (g/mol) and average atomic mass in amu of each element?
    14·1 answer
  • The initial temperature of three moles of oxygen gas is 32.5°C, and its pressure is 6.60 atm. (a) What will its final temperatur
    6·1 answer
  • 8.
    12·1 answer
  • WILL GIVE BRANLIEST!! EASY BUT I WAS TO LAZY TO LEARN!! WILL FOREVER BE GREATFUL!!! WILL GIVE BRANLIEST!! EASY BUT I WAS TO LAZY
    5·1 answer
  • What is the mass in grams of 2.21 mole of Ca3(PO4)4?
    8·1 answer
  • Name 3 ores for metals and which metal they yield?​
    7·1 answer
  • Methane is a major component of natural gas, which is used as a fuel in homes.Write a balanced equation for the complete oxidati
    5·1 answer
  • Which statements describe inorganic compounds? Check all that apply.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!