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
jenyasd209 [6]
2 years ago
7

When water evaporates, what happens to its molecules?

Chemistry
1 answer:
Scrat [10]2 years ago
7 0
It’s the first one: A. the water molecules stay the same they just change phase to a gas
You might be interested in
Could anyone help me with question 3?
Masteriza [31]
What your question for number 3
8 0
3 years ago
Why the partial charge on H in HF is more positive than the partial charge on H in HBr
erik [133]
Because fluorine has a higher electronegativity
8 0
3 years ago
in a mixture of 1.90 mol of gas, 0.85 mol are nitrogen (n2) molecules. what is the mole fraction of n2 in this mixture?
Nostrana [21]

0.447 is the mole fraction of Nitrogen in this mixture.

mole fraction of nitrogen= moles of nitrogen/total moles

mole fraction of nitrogen=0.85/1.90

mole fraction of nitrogen=0.447

The product of the moles of a component and the total moles of the solution yields a mole fraction, which is a unit of concentration measurement. Because it is a ratio, mole fraction is a unitless statement. The sum of the components of the mole fraction of a solution is one. In a mixture of 1 mol benzene, 2 mol carbon tetrachloride, and 7 mol acetone, the mole fraction of the acetone is 0.7. This is computed by dividing the sum of the moles of acetone in the solution by the total number of moles of the solution's constituents:

To know more about mole fraction visit : brainly.com/question/8076655

#SPJ4

4 0
1 year ago
Why do organisms need nitrogen?
RSB [31]
<span>All bulbs/plants and creatures </span>want nitrogen<span> to produce amino hallucinogen, proteid and DNA, although this </span>nitrogen<span> in the air is not in a manner that everybody can use.

For more information, look at the appendage below!</span>

6 0
3 years ago
A ball has a mass of 140 g. What is the force needed to accelerate the ball at 25 m/s2? (Formula: F=ma) 3.5 N 115 N 165 N 4.5
Ksju [112]
<h3>Answer:</h3>

3.5 Newton

<h3>Explanation:</h3>

We are given;

Mass of the ball = 140 g

Acceleration = 25 m/s²

Required to find the force;

  • According to Newton's second law of motion, the resultant force on a body in motion and the rate of change in linear momentum are directly proportional.
  • That is; F \alpha \frac{Mv-Mu}{t}
  • Thus; F = ma , where F is the resultant force, m is the mass and a is the acceleration.

To get the force we substitute the value of m and a in the formula;

Therefore;

F = 0.14 kg × 25 m/s²

  = 3.5 N

Hence, the force needed to accelerate the ball is 3.5 N

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which characteristics help enable plants to survive on earth ?
    12·1 answer
  • Write the names and symbols for four elements in each of the following categories: (a) nonmetal, (b) metal, (c)metalloid.
    15·1 answer
  • True or false , the viscosity of water is much greater than the viscosity ofhoney.
    12·2 answers
  • what happened to the color of the sand when it goes through filtration and is quantitative or qualitative
    6·1 answer
  • All three of the phosphorus-fluorine single bonds in pf3 are polar. in which direction should the polarity arrows point?
    10·1 answer
  • 3+<br> 4N<br> what element is this?
    8·1 answer
  • Fassst. A or b or c or d plzzz
    6·2 answers
  • A satellite can move around Earth in a circular orbit at constant height because
    9·1 answer
  • Assuming all other conditions remain the same, which of the following will cause an object's density to increase?
    5·1 answer
  • renata developed a hair dye additive that is guaranteed to cover grey hair. she granted the right to use this additive to a majo
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!