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
11

Which subatomic particles have a mass of approximately 1 atomic mass unit each?

Chemistry
1 answer:
Sedbober [7]3 years ago
5 0
Great question! The subatomic particles that have most of the mass in the particle are the positive proton, and the neutral neutron. Therefore, protons and neutrons are the two subatomic particles have approximately 1 atomic mass unit each.
You might be interested in
A 1 liter solution contains 0.304 M acetic acid and 0.228 M sodium acetate. Addition of 0.114 moles of perchloric acid will:____
Papessa [141]

Answer:

Lower the pH slightly

Explanation:

A buffer is defined as the mixture between weak acid and conjugate base. In the problem, acetic acid is the weak acid and sodium acetate the conjugate base.

When a strong acid as perchloric acid is added to a buffer, <em>the pH decreases slightly</em> because the acid reacts with conjugate base producing weak acid and not affecting directly the concentration of H⁺ ions.

5 0
3 years ago
A gas at constant volume has a pressure of 4. 50 atm at 200. K. What will be the pressure of the gas at 250. K? 3. 60 atm 4. 60
Trava [24]

5.625 atm will be the pressure of the gas at 250 K temperature of the gas at constant volume.

<h3>How we calculate the pressure of the gas?</h3>

Pressure of the gas will be calculated by using the ideal gas equation as:

PV = nRT,

From the question, it is clear that:

Moles of the gas and volume is constant here, so we calculate the pressure by rearranging the above equation as:

P/T = nR/V

And required equation will be:

P₁/T₁ = P₂/T₂, where

P₁ = pressure of gas = 4.50 atm

T₁ = temperature of gas = 200 K

P₂ = pressure of gas = to find?

T₂ = temperature of gas = 250 K

On putting all these values in the above equation, we get

P₂ = 4.50 × 250 / 200 = 5.625 atm

Hence, 5.625 atm is the pressure of the gas.

To know more about ideal gas equation, visit the below link:

brainly.com/question/1056445

5 0
3 years ago
What happens when a catalyst is used in a chemical reaction
uranmaximum [27]
<span>The reaction rate increases.

Why </span><span>Well a catalyst usually lower the activation barrier in an energy diagram. The lower and smaller that gap means the reaction is taking place rapidly compared to when that activation barrier gap is higher. </span>

6 0
3 years ago
Why is a phenol more acidic than a regular alcohol? Group of answer choices
Aleks [24]

Answer:

a.Phenols have the ability to spread out the negative charge that forms.

Explanation:

This happens because of  the aromatic ring the phenols have. When loosing the proton, the anion formed have different resonance isomers due to the double bonds in the aromatic ring. This resonance makes the anion more stable and prevents the reaction going backwards.

On the other hand, regular alcohol doesn't have resonace and the reaction of loosing the proton goes leftward and righward: is in equilibrium.

That equilibrium decreases the acidity of the alcohol.

3 0
4 years ago
What is a kilogram??
sukhopar [10]

A kilogram is a measure of mass; 1,000 grams

8 0
3 years ago
Read 2 more answers
Other questions:
  • What types of ion are their?
    7·1 answer
  • Complete and balance the following equation: NO2−(aq)+Cr2O72−(aq)→Cr3+(aq)+NO3−(aq)(acidic solution) Express your answer as a ne
    7·1 answer
  • A sample of ideal gas is in a sealed container. The pressure of the gas is 505torr, and the temperature is 43 degree celsius. If
    5·1 answer
  • Match the letters with the correct part of the flower
    10·1 answer
  • What would be an example of a chemical change that took a long time to occur
    14·1 answer
  • How many significant figures are in 31400
    5·1 answer
  • What is used to measure heat?
    10·1 answer
  • Help asap i don’t understand at all lol
    10·2 answers
  • A/AN indicates direction on a map.<br> A. legend<br> B. compass rose<br> C. index<br> D scale
    8·1 answer
  • In order to model a chemical change in the laboratory, a student wants to select the appropriate measuring apparatus to record t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!