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
Alex Ar [27]
3 years ago
12

Which subatomic particles have approximately the same mass?

Chemistry
2 answers:
igor_vitrenko [27]3 years ago
8 0

Answer:

The 3rd one is correct

Explanation:

Protons and neutrons have approximately the same mass, about 1.67 × 10−24 grams, which scientists define as one atomic mass unit (amu) or one Dalton. Each electron has a negative charge (−1) equal to the positive charge of a proton (+1). Neutrons are uncharged particles found within the nucleus.

zvonat [6]3 years ago
5 0

Explanation:

protons and neutrons have approximately the same size, the electron is 1847th, (I think), the size of a proton

You might be interested in
Need help plssss!!!!!
Mashutka [201]

Answer:

a

Explanation:

becsaus

6 0
3 years ago
Radiant energy is a form of...
ddd [48]
Electromagnetic waves
7 0
3 years ago
Read 2 more answers
The radioactive isotope I-131 is used in
Fudgin [204]
The answer is D, medical diagnosis
3 0
3 years ago
When double-stranded DNA is heated at neutral pH, which change does not occur?
Sindrei [870]

Answer:

B) The covalent N-glycosidic bond between the base and the pentose breaks

Explanation:

When forces that bind 2 DNA strands are broken, these strands finally split. This process is called denaturalization

The main forces that remain both DNA strands together are the hydrogen bonds (physical forces), between pair of bases (Adenine with Thymine, and Guanine with Cytosine)

Denaturalization may occur by different factor: Ph alteration, salt addition, temperature (heating), etc

When heating a DNA solution, denaturalization process may be followed using UV absorption (normally, at wavelength of 260 nm): when DNA (double strand) has its regular structure, UV light absorption is low, as the nitrogen bases are stacked like a pile of coins, for which structure absorbs less light

When DNA structure is denaturalized, these nitrogen bases are exposed, and UV absorption increases

Also, DNA denaturalization may be followed by viscosity: for a double strand DNA solution, viscosity is high due to double chain stiffness but when strands are denaturalized, simple strands solution are less viscous (so viscosity decreases over time, when heating the solution)

Lastly, when solution is heated, only physical forces are broken (hydrogen bonds) and not chemical bonds (such as covalent bonds), for which extreme conditions are needed

7 0
3 years ago
Which piece of glassware shown below is used to hold and dispense a solution of known concentration during a titration?
Musya8 [376]

Answer:

Answer C

Explanation:

Got it off of q**zlet ;)

4 0
2 years ago
Other questions:
  • Construct a three-step synthesis of 3-bromocyclopentene from cyclopentane. Drag the appropriate items into the bins. Note that e
    8·1 answer
  • What does it mean for a strong base to be in equilibrium
    9·1 answer
  • Could use some help on this one
    9·1 answer
  • If a combustion reaction is reversed, what needs to happen to the H value?
    9·1 answer
  • Calculate the mass in grams 3.00 moles Na
    15·1 answer
  • IXL Science (PLS HELP)
    11·1 answer
  • Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows:
    6·1 answer
  • Which of the following developments would most likely occur if average summer air temperatures in the Arctic increased by 4°C?
    13·1 answer
  • An orbital is best defined as
    15·1 answer
  • What would be the mass, in grams, of 1.505 x 1023 molecules of carbon disulfide?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!