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
densk [106]
3 years ago
7

Which two particles each have a mass approximately equal to one atomic mass unit?

Chemistry
2 answers:
natali 33 [55]3 years ago
3 0

Answer is: (4) proton and neutron.

One unified atomic mass unit is approximately the mass of one nucleon (proton or neutron).

The unified atomic mass unit (amu) is a standard unit of atom mass.  

One unified atomic mass unit is approximately the mass of one nucleon (1.66·10⁻²⁷ kg).

For example, one carbon atom has mass of 12 amu (unified atomic mass).

The electron has a mass that is approximately 1/1836 that of the proton.

GarryVolchara [31]3 years ago
3 0

Answer : The correct option is, (4) proton and neutron

Explanation :

There are three subatomic particles which are protons, neutrons and electrons.

The protons and the neutrons are present in the nucleus. Protons are positively charged and neutrons has no charge.

The electrons are present around the nucleus or outside the nucleus and electrons are negatively charged.

The mass of proton and neutron is equal to one atomic mass unit.

The mass of electron is zero.

The positron is also a subatomic particle with the same mass of an electron. But the positron are positively charged. That means the mass of positron is also zero.

Hence, the proton and neutron two particles each have a mass approximately equal to one atomic mass unit.

You might be interested in
1) What is the name of the following Covalent Compound:<br> N2O6
Mars2501 [29]
Iconic +covalent is the answer to this
8 0
3 years ago
Helppppp pls it’s due by today
Andrews [41]

Answer:

i can't see the picture

Explanation:

4 0
3 years ago
Read 2 more answers
Create the Equation: What is the Percent Yield of Ammonia (NH3) if 11.8 g is recovered in a reaction with 7.02 x 10^23 molecules
insens350 [35]

Answer:

Explanation:

The first thing that you need to do here is to calculate the theoretical yield of the reaction, i.e. what you get if the reaction has a

100

%

yield.

The balanced chemical equation

N

2

(

g

)

+

3

H

2

(

g

)

→

2

NH

3

(

g

)

tells you that every

1

mole of nitrogen gas that takes part in the reaction will consume

3

moles of hydrogen gas and produce

1

mole of ammonia.

In your case, you know that

1

mole of nitrogen gas reacts with

1

mole of hydrogen gas. Since you don't have enough hydrogen gas to ensure that all the moles of nitrogen gas can react

what you need

3 moles H (sub 2)

>

what you have

1 mole H (sub2)

you can say that hydrogen gas will act as a limiting reagent, i.e. it will be completely consumed before all the moles of nitrogen gas will get the chance to take part in the reaction.

So, the reaction will consume

1

mole of hydrogen gas and produce

1

mole H

2

⋅

2 moles NH

3

3

moles H

2

=

0.667 moles NH

3

at

100

%

yield. This represents the reaction's theoretical yield.

Now, you know that the reaction produced

0.50

moles of ammonia. This represents the reaction's actual yield.

In order to find the percent yield, you need to figure out how many moles of ammonia are actually produced for every

100

moles of ammonia that could theoretically be produced.

You know that

0.667

moles will produce

0.50

moles, so you can say that

100

moles NH

3

.

in theory

⋅

0.50 moles NH

3

.

actual

0.667

moles NH

3

.

in theory

=

75 moles NH

3

.

actual

Therefore, you can say that the reaction has a percent yield equal to

% yield = 75%

−−−−−−−−−−−−−

or 75 moles NH sub3

I'll leave the answer rounded to two sig figs.

5 0
3 years ago
What is 20 times 200000000
iren [92.7K]

Answer: 4000000000

because 20X200000000=4000000000

4 0
2 years ago
The eye can see colors because:
likoan [24]

Answer:

The answer is A, I think.

4 0
3 years ago
Read 2 more answers
Other questions:
  • How many atoms are in 5.64 moles of iron
    7·1 answer
  • What is the compound MnCl2 called?
    7·1 answer
  • What is the function of autotrophs in the carbon cycle?
    6·1 answer
  • What is the correct description of the components of an ATP molecule?
    5·1 answer
  • The star Antares has a mass of 3.08 x 1031 kg.<br> How might this star be classified?
    13·2 answers
  • When sodium is excited in a flame, two ultraviolet spectral lines at lambda - 372.1 nm and lambda = 376.4 nm respectively are em
    15·2 answers
  • Mucin, a component of saliva, functions to __________.
    13·1 answer
  • What is the diameter of Neptune in standard notation
    8·1 answer
  • How do we know what is inside the Earth? (How do we know the Earth has layers?)
    5·1 answer
  • Which flower parts make up a pistil?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!