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
Svet_ta [14]
3 years ago
8

A barrel of water weighs 60 pounds. What must you put in it for it to weigh 40 pounds?

Chemistry
2 answers:
Murljashka [212]3 years ago
6 0

A barrel of water weighs 60 pounds. What must you put in it for it to weigh 40 pounds?

A hole

astraxan [27]3 years ago
3 0

Answer:

A hole

Explanation:

put a hole in the barrel and let some water out

You might be interested in
Determine whether each carbohydrate is best described as a monosaccharide, a disaccharide, or a polysaccharide
vazorg [7]

Answer options from an alternative source

  • fructose                              
  • lactose                              
  • starch
  • glucose                                                                            
  • cellulose

Answer:

  • fructose -monosaccharide                              
  • lactose  - disaccharide                            
  • starch  - polysaccharide
  • glucose - monosaccharide                                                                          
  • cellulose - polysaccharide

Explanation:

Monosaccharides are carbohydrates that are the simplest form of a sugar. They cannot be further broken down into smaller carbohydrates, and represent the basic building block for carbohydrates. Monosaccharides can form disaccharides, which are the sugar formed when two monosaccharides join together, or polysaccharides, which are chains of monosaccharides.

3 0
3 years ago
How does an atom change if all of its electrons are removed?<br> .
Soloha48 [4]

Answer:

If an atom looses all of its electrons then it will become positively charged. It will also turn into an Ion.

Explanation:

4 0
3 years ago
What has a density of q
Novay_Z [31]

Answer:

  • Water has the density of 1.0g/ml
  • Anything with a density of less than 1.0/ml will float above water.
  • Alcohol would float above the water since it has a lighter density.

4 0
3 years ago
The antibiotic prontosil, developed by bayer pharmaceuticals in 1932, was used in saving the life of president roosevelt's son f
Alja [10]

Prontosil is a compound produced by the coupled reaction of an aryldiazonium ion and an aromatic compound.

<h3>What are diazonium compounds?</h3>

These are organic compounds in which there are ionic interactions between the azo group (-N₂⁺) and an anion X⁻.

The general structure is RN₂⁺X⁻.

  • R is the lateral chain that might be an aromatic ring, among other options.
  • N₂⁺ is the azo group
  • X⁻ is the anion

The azo group characterizes as being unstable and reactive. This property is because one of the N atoms has a positive charge.

-N⁺≡ N

<h3>What is the coupling reaction of aryldiazonium compounds?</h3>

Aryldiazonium salt reactions can occur in two ways,

  • Substitution reactions
  • Coupling reactions

Coupling reactions are the aromatic electrophilic substitution, where the aryldiazonium ion acts as an electrophile for an activated aromatic compound to attack it.

The coupling reaction occurs at the azo group level.

In the exposed example,

  • the benzene ring with sulfur bonded to oxygen atoms is the coupling component
  • the benzene ring with NH₂ and the azo group is the diazonium ion

In the attached files you will find the drawings.

You can learn more about diazonium compounds at

brainly.com/question/9061271

brainly.com/question/9389852

brainly.com/question/13147442

5 0
2 years ago
Which of the following shows a correct base pairing in DNA
statuscvo [17]
DNA bop it does not say it in my test
6 0
3 years ago
Other questions:
  • Which city had the highest temperature
    8·2 answers
  • According to the Rutherford model of the atom, positive charge is where?
    11·2 answers
  • When a solvent can dissolve no more of a solid solute at a specific temperature, we say the solution is ________.
    14·2 answers
  • What is the difference between radiant energy,sound energy and electric energy?
    11·1 answer
  • “Least molecular motion, lowest kinetic energy, strongest forces of attention, most dense packaging of molecules”. Which state o
    5·1 answer
  • PLZ SOMEONE HELP THANKS:))))<br> materials and conclude which is best to use. Full explanation
    14·1 answer
  • Why does an ice cube melt when you hold it in your hand?
    11·2 answers
  • What is the volume of 3.00 M sulfuric aid that contain 9.809 g of H2SO4 (98.09g/mol)
    5·1 answer
  • True or false
    6·1 answer
  • The two electrons in a helium atom occupy
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!