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
siniylev [52]
2 years ago
9

Devin investigated whether salt reduces the boiling point of water. She poured 1 gallon of 18 degrees Celsius (°C) water into a

pot and added 2 cups of salt to it. Devin heated it over a fixed flame and measured the temperature when the water reached a rolling boil. She repeated the experiment with 1 gallon of water and 4 cups of salt under identical conditions. Where did Devin make a mistake in her experimental design?
She did not boil a pot of water without salt.


She waited until the water reached a rolling boil.


She used different amounts of salt in the two pots.


She did not heat the pots of water at the same time.
Physics
2 answers:
ankoles [38]2 years ago
6 0
Heheh I’m dying help call 911
daser333 [38]2 years ago
4 0

Answer:C

Explanation:

She used 2 different amounts of salts so that was her mistake she should of used 1

You might be interested in
The condition of a country’s depends on its people’s ability to exchange money for goods and services.
vaieri [72.5K]

Answer;

-Economy

The condition of a country’s economy depends on its people’s ability to exchange money for goods and services.

Explanation;

Economy is the state of a country or region in terms of the production and consumption of goods and services and the supply of money.

An economy encompasses all activity related to production, consumption and trade of goods and services in an area. An economy applies to everyone from individuals to entities such as corporations and governments.

There are four different types of economies; traditional economy, market economy, command economy and mixed economy. Each type of economy has it’s own strengths and weaknesses.


6 0
3 years ago
Read 2 more answers
Which resistors in the circuit are connected in series?
Lisa [10]

Answer:

it's C and D... do you understand?

7 0
2 years ago
Explain how thermal energy (temperature) affects chemical changes.
Monica [59]
If bonds are broken, the energy is released, and if bonds are formed, energy is absorbed. During conversions from chemical energy to thermal energy, the energy stored in the chemical bonds are released and this energy causes surrounding molecules to move faster thus increasing the thermal energy of a substance.
8 0
3 years ago
Which of the following is an example of a material that allows electrons to easily move through it?
AVprozaik [17]
Conductors allow<span> for </span>charge<span> transfer </span>through<span> the free movement of </span><span>electrons

</span>
6 0
3 years ago
4. If a book falls off the kitchen counter and hits the floor 0.51 seconds later,
Zigmanuir [339]

Answer:

1.2 miles per second

Explanation:

6 0
3 years ago
Other questions:
  • Which of the following changes the mass of an object?
    15·2 answers
  • Water is the most common polar solvent. All of the following will dissolve, or be soluble, in water except _________.
    7·2 answers
  • How can you prevent static sparks while filling your boat's fuel tank?
    5·2 answers
  • A liquid in a given capillary tube always rises up to a fixed height but not infinitely why
    9·1 answer
  • A sled and rider with a combined mass of 70 kg are at the top of a hill that rises 9 m above the level ground below. The sled is
    12·1 answer
  • In which galaxy is our solar system located?
    8·2 answers
  • Which conversion is the function of a photovoltaic cell? A) sunlight to mechanical energy B) electricity to heat C) sunlight to
    7·1 answer
  • A planet or butting a distant star has been observed to have an orbital period of 0.76 earth years at a distance of 1.2 au. What
    14·1 answer
  • All the bulb in the series circuit are on or off together?
    12·1 answer
  • Organ systems are groups of organs that do not carry out similar<br> functions <br> True<br> False
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!