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
Leno4ka [110]
3 years ago
6

What is indirect evidence in science

Chemistry
1 answer:
hodyreva [135]3 years ago
8 0

Definition of indirect evidence. : evidence that establishes immediately collateral facts from which the main fact may be inferred : circumstantial evidence.

You might be interested in
How many atoms are in 3 moles of carbon?
Leokris [45]

Answer:

18.06 x 10^23

7 0
3 years ago
Read 2 more answers
After 1911, most scientists accepted the theory that the nucleus of an atom was very dense and very small and had a positive cha
Scorpion4ik [409]

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

4 0
3 years ago
The product of the nuclear reaction in which 40Ar is subjected to neutron capture followed by alpha emission is ________. The pr
Orlov [11]

Answer:

37S

Explanation:

Radioactivity is the spontaneous emission of particles and / or electromagnetic radiation by unstable atomic nuclei leading to their disintegration.

We have two main types of radioactivity: radioactive decay and artificial transmutation.

In radioactive decay ( natural radioactivity ), a naturally occurring radioactive element like Uranium-238 disintegrates or decays into more stable isotopes with the emission of particles and/or radiation.

23892U = 23490Th + 42He

Artificial transmutation is the collision of two particles where one particle captures the other used to bombard it. There is subsequent production of isotopes similar or different from the bombarded particle. Neutrons, alpha particles ( helium nucleus ), electrons, protons can be used to bombard elements.

147N + 42He = 178O + 11P

For the above question which is artificial transmutation, the reaction equation is

4018Ar + 10n = 3716S + 42He

So, the neutron capture by Argon-40 will produce a radioisotope Sulphur-37 with the emission of an alpha particle.

5 0
3 years ago
Which form of carbon is the hardest
Nataly [62]
Diamond are the hardest Pure form of carbon.
3 0
3 years ago
For an ideal gas condition, what is the mass (g) of N2 if the pressure is 2.0 atm, the volume is 25 mL and the temperature is 29
Alchen [17]

Answer:

THE MASS OF NITROGEN GAS IN THIS CONDITIONS IS 0.0589 g

Explanation:

In an ideal condition

PV = nRT or PV = MRT/ MM where:

M = mass = unknown

MM =molar mass = 28 g/mol

P = pressure = 2 atm

V = volume = 25 mL = 0.025 L

R = gas constant = 0.082 L atm/mol K

T = temperature = 290 K

n = number of moles

The gas in the question is nitrogen gas

Molar mass of nitrogen gas = 14 * 2 = 28 g/mol

Then equating the variables and solving for M, we have

M = PV MM/ RT

M = 2 * 0.025 * 28 / 0.082 * 290

M = 1.4 / 23.78

M = 0.0589 g

The mass of the nitrogen gas at ideal conditions of 2 atm, 25 mL volume and 290 K temperature is 0.0589 g

3 0
3 years ago
Other questions:
  • Consult an aufbau diagram which shell would be complete with 10 electrons
    6·2 answers
  • A liter is the same as a _____.
    11·2 answers
  • How do particles tend to move in solids? Please explain your answer
    9·2 answers
  • A sample of bismuth weighing 0.687 g was converted to bismuth chloride by reacting it first with HNO3, and then with HCI, follow
    11·1 answer
  • The charge on a charged sphere is concentrated at (or on) its ________.
    15·2 answers
  • Which best describes the soils found in the southeastern United States?
    12·2 answers
  • Each particle of water in an ocean wave moves in a circle true or false
    13·1 answer
  • What would sunscreen look like if it absorbed all of the visible light that hit it?
    6·1 answer
  • Bao + ........ --> BaCO3 + ......
    7·1 answer
  • How does a car safely transfer the kinetic energy of the passenger and the car?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!