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
Arlecino [84]
3 years ago
12

After 1911, most scientists accepted the theory that the nucleus of an atom was very dense and very small and had a positive cha

rge. What led scientist to accept this theory?
A) Dalton’s theory of the atom was over 100 years old

B) Scientists before 1911 used the scientific method of inquiry improperly

C) A new model proved that the quantum theory of the atom was inaccurate

D) Rutherford did an experiment firing alpha particles at a thin piece of gold foil
Chemistry
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

I believe it is D

Explanation:

since Rutherford's explanation, when he made it in 1911, was that scattering was caused by a hard, dense court to centre of the Adam, which is the nucleus and he used Alpha particles to observe the scattered backwards from a gold foil

You might be interested in
Find the grams in 1.26 x 10^-4 mole of HC2 H3O2
ivolga24 [154]
Molar mass :

HC₂H₃O₂ = 1 + 12*2 + 1 * 3 + 16 * 2 = 60 g/mol

1 mole <span>HC₂H₃O₂ -------------- 60 g
</span>1.26x10-⁴ mole ----------------- mass

mass =  1.26x10-⁴ * 60

mass = 0.00756 g of <span>HC₂H₃O₂</span>

hope this helps!


7 0
3 years ago
Explain why it is important to assume that the rate of radioactive decay aka radioactivity will remain constant over time?
marusya05 [52]

Answer and Explanation:

It's very important to assume that the rate of radioactive decay will remain constant over time to make scientists' lives easier when calculating the ages of fossils, compounds, etc.

If the rate changes, it would be extremely challenging for people to figure out the relative ages of rock strata, fossils, or other substances with radioactive elements in them. This is a fundamental assumption in order to be able to use radioactive dating.

Hope this helps!

8 0
4 years ago
Read 2 more answers
Which of the following is NOT a function of the skeletal system?
spayn [35]

Answer:

A yan hehehehe

salamat puso ma ah

7 0
3 years ago
According to Table I, which equation represents a change resulting in the greatest quantity of energy released?
love history [14]
The answer is 3. The releasing of energy means exothermic reaction. So the ΔH should be negative. And the greatest quantity of energy released means that the greatest number. So according to the table I, the answer is 3.
8 0
3 years ago
Read 2 more answers
Se tiene una solución acuosa 2M de carbonato de potasio. Expresar su concentración en %p/v y Normalidad.
zepelin [54]

Answer:

Normalidad = 4N

%p/V = 27.6%

Explanation:

La solución 2M de carbonato de potasio contiene 2moles de carbonato por litro de solución. La normalidad son los equivalente de carbonato de potasio (2eq/mol) por litro de solución:

2moles * (2eq/mol) = 4eq / 1L = 4N

El porcentaje peso volumen es el peso de carbonato en gramos dividido en el volumen en mL por 100:

%p/V:

Masa K2CO3 -Masa molar: 138.205g/mol-

2moles * (138.205g/mol) = 276g K2CO3

Volumen:

1L * (1000mL/1L) = 1000mL

%p/V:

276g K2CO3 / 1000mL * 100

<h3>%p/V = 27.6%</h3>
6 0
3 years ago
Other questions:
  • What is the charge of Fe?
    6·1 answer
  • Does everything that you can see fit the definition for matter
    5·1 answer
  • There are 2.60 x 1015 short tons of oxygen in the atmosphere ( 1 short ton = 2000 lb). How many metric tons of oxygen are oresen
    9·1 answer
  • How do I find density
    15·1 answer
  • Describe the law of conservation of mass and how it applies to chemical reactions.
    14·1 answer
  • Which term describes the materials magma is made of?
    9·2 answers
  • If I have 6 moles of a gas at a pressure of 10.6 atm and a volume of 48 liters, what is the temperature of this gas?
    9·1 answer
  • Match each definition to the appropriate term.
    11·1 answer
  • Which action would not help a person stay safe during a tornado? O A. Moving away from outside walls B. Going into a storm shelt
    9·1 answer
  • Which element in the list is the most reactive?<br><br> C<br><br> Ba<br><br> S<br><br> Cs
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!