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
ra1l [238]
2 years ago
14

At a room temperature, which of the following will evaporate first, a drop of water or a drop of ethanol

Chemistry
2 answers:
Angelina_Jolie [31]2 years ago
5 0

Ethanol will evaporate first because it is more volatile or has a lower boiling point than water.

elena-14-01-66 [18.8K]2 years ago
3 0

Answer:

The water and the alcohol will start to evaporate once you start blowing on your hand. Compared with water, alcohol has a lower heat of evaporation. That means that for the same amount of liquid, more heat transfer occurs during the evaporation of water compared with the alcohol.

You might be interested in
Which of the following statements about the ordinary IR spectroscopic regions are TRUE? 1. In general, the IR FUNDAMENTAL region
yaroslaw [1]

Answer: the statements in 1 and 2 are true of IR spectroscopic region.

1. In general, the IR FUNDAMENTAL region has a longer wavelength region than the region we call the ultraviolet (uv) region.

2. We can sense some of the frequencies of the FUNDAMENTAL region of the IR as heat

Explanation:

IR has energy value between 10^-5eV - 10^-2eVwhile

UV has energy value of 4eV - 300eV

IR has low photon energy and cannot alter atoms and molecules while UV has sufficient energy to iodize atoms therefore UV has a higher energy band.

Infrared light falls just outside the visible spectrum, beyond the edge of what we can see as red.

5 0
3 years ago
You probably already know the names of some molecules. Identify which compound (water, salt, carbon dioxide, or methane) corresp
vladimir1956 [14]

CO2 is carbon

H2O is water

CH4 is methane

NaCI is salt

7 0
3 years ago
Read 2 more answers
Jill and Susan were absent when the instructions were given for the lab investigation. They gathered their materials and watched
MrRissso [65]
Jill and Susan violated safety procedures by not properly listening and/or reading over the instructions to know all the materials, steps, and equipment they need for the lab. Hope this helps!
6 0
2 years ago
Read 2 more answers
a chemist dissolves 0.564 moles of manganese (IV) oxide (MnO2) in water, and adds enough water to make 0.510 L of solution. Calc
ladessa [460]

Answer:

The molarity of the solution is 1.1 \frac{moles}{liter}

Explanation:

Molarity is a measure of the concentration of that substance that is defined as the number of moles of solute divided by the volume of the solution.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

molarity=\frac{number of moles of solute}{volume}

Molarity is expressed in units \frac{moles}{liter}

In this case

  • number of moles of solute= 0.564 moles
  • volume= 0.510 L

Replacing:

molarity=\frac{0.564 moles}{0.510 L}

Solving:

molarity= 1.1 \frac{moles}{liter}

<u><em>The molarity of the solution is 1.1 </em></u>\frac{moles}{liter}<u><em></em></u>

4 0
2 years ago
Water samples containing dissolved substances are called _____ solutions. A. solvent B. aqueous C. anhydrous D. elementary
dlinn [17]
The answer is B. hopes it help  you.!!
7 0
3 years ago
Other questions:
  • (25 hours ) /1 ( minutes) = ( hour )
    14·1 answer
  • Identify the oxidized substance, the reduced substance, the oxidizing agent, and the reducing agent in the redox reaction. Cu(s)
    6·1 answer
  • A container of acetylene gas (C2H2) holds 3.86mol of acetylene and has a volume of 39.2L. If there were a leak and the volume we
    11·2 answers
  • Why does the atomic radius of elements get bigger as we go from top to bottom on the periodic table?
    10·2 answers
  • Monkeys and bats have similar bone structure in their forelimbs. However, monkeys have longer forelimbs to use for climbing and
    13·1 answer
  • Which feature does the model show accurately
    14·1 answer
  • Help. Please.
    10·1 answer
  • C6H12O6 + 6O2 → 6CO2 + ? H2O + energy<br> Whats the answer? I really don't know,
    14·1 answer
  • The energy on the earth
    8·1 answer
  • Help asap plz thank you!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!