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
klemol [59]
3 years ago
15

Can someone pls help me with this question?:

Chemistry
1 answer:
dangina [55]3 years ago
6 0

Answer:

James Chadwick

Explanation:

In his first experiment, Rutherford was unable to predict the total mass of nucleus. He noticed that if only electrons and protons are present in the nucleus then by adding their masses, it falls short of the net mass of the atom. so he concluded that there must be another particle and that Particle was later discovered by James Chadwick in 1932.

You might be interested in
Which beach will be most affected by wind erosion? Why ?
laila [671]

Answer: A

Explanation: There is a lot of sand that will blow and form dunes unlike option b

8 0
3 years ago
Two 0.75 Amp loads are connected in parallel with a 2500 Milliamperehour Ni-Cd battery. Approximately how long can the battery p
nikdorinn [45]

Explanation:

It is given that two loads have 0.75 Ampere current each. And, they contain 2500 milli ampere per hour Ni-Cd battery.

As both the loads are connected in parallel. Hence, total current will be calculated as follows.

               I = I_{1} + I_{2}

                 = 0.75 A + 0.75 A

                 = 1.5 A

                 = 1.5 A \times \frac{1000 mA}{1 A}

                 = 1500 mA

Relation between time and capacity of battery is as follows.

             Capacity = Current × time (in hour)

therefore,        time = \frac{Capacity}{Current}

                                = \frac{2500 mA. h}{1500 A}

                                = 1.667 hr

Thus, we can conclude that the battery provide power to the load up to 1.667 hours.

4 0
3 years ago
What is the partial pressure of 0.50 mol Ne gas combined with 1.20 mol Kr gas at a final pressure of 730 torr?
WARRIOR [948]
  The partial pressure  of 0.50  Ne  gas    is   214.71  torr


      calculation

 the partial   pressure  of Ne  = moles  of Ne/total moles  x  final  pressure

 
find  the total  moles  of the air mixture  

that is moles of   Ne  +  moles of K=  0.50 + 1.20  =  1.70 moles
  

The partial  pressure  is therefore =   0.50 /1.70  x  730  =  214.71  torr
   
8 0
3 years ago
Read 2 more answers
Why do scientists continue to investigate certain topics like the atom?
Margaret [11]

Answer:

to understand the human life

Explanation:

hope this helps :)

5 0
2 years ago
Read 2 more answers
The climate of the continental United States is generally _____________.
rodikova [14]
The answer is B. Temperate.
3 0
3 years ago
Other questions:
  • A 6.00 L vessel contains 20.0 g of PCl3 and 3.15 g of O2 at 15.0 ∘C. The vessel is heated to 210 ∘C, and the contents react to g
    7·2 answers
  • Is a Mercury Thermometer a pure substance or a mixture?
    11·1 answer
  • How does the electrical force relate to the distance between two charged objects?
    6·2 answers
  • Please fast I need you to do this question FOR 15POINTS!!!!!!
    13·2 answers
  • What type of energy transfer is responsible for making you feel cold when you are swimming in cool water? Explain your answer
    6·1 answer
  • George knows that topography is continually being created and
    11·1 answer
  • What is the oxidation state of nitrogen in NaNO2?<br> (1) +1 (3) +3<br> (2) +2 (4) +4
    13·1 answer
  • How does energy loss account for the relative proportions found in ecosystems.
    12·1 answer
  • WHEN A SOCCER PLAYER KICKS A BALL, THE BALL ACCELRATES. EXPLAIN WHAT CAUSES THIS ACCELERATION IN TERMS OF FORCES?
    11·1 answer
  • Use the Rydberg equation to find the wavelength (in Å) of the photon absorbed when an electron in an H atom undergoes a transiti
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!