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
Ganezh [65]
3 years ago
14

This is for earth and space.

Chemistry
1 answer:
Arada [10]3 years ago
6 0
<span>The three main types of erosion caused by glaciers are plucking, abrasion, and freeze thawing. Plucking forces rocks off of the back wall when glacier water melts and re-freezes around cracked and broken rocks. Abrasion occurs when rocks frozen to the base of the glacier scrape the bed rock. Freeze thawing occurs when melted water gets into the bed rock. An outwash plain is an area formed by sediments at the terminus of a glacier. Outwash plains may contain suficial braided stream complexes, and kettle lakes. The outwash plains originate from melting ice deposits.</span>
You might be interested in
Calculate the Standard Enthalpy of the reaction below:
Norma-Jean [14]

Answer:

(we use hess's law) it is so simple but the second reaction is not correct please right it

6 0
3 years ago
4,600,000,000,000 in scientific notation
BabaBlast [244]
4.6to the twelth power plus ten or something like that it has been a while since I have done the scientific notation but where ever you put in the number of zeros. is twelve
6 0
3 years ago
After he conducted cathode ray tube experiments proving the existence of negatively charged particles we now call electrons, Tho
Lina20 [59]

Answer:

Answer is explained below;

Explanation:

In 1904, after the discovery of the electron, the English physicist Sir J.J. Thomson proposed the plum pudding model of an atom. In this model, the atom had a positively-charged space with negatively charged electrons embedded inside it i.e., like a pudding (positively charged space) with plums (electrons) inside.

In 1911, another physicist Ernest Rutherford proposed another model known as the Rutherford model or planetary model of the atom that describes the structure of atoms. In this model, the small and dense atom has a positively charged core called the nucleus. Also, he proposed that just like the planets revolving around the Sun, the negatively charged electrons are moving around the nucleus.

By conducting a gold foil experiment, Rutherford disproved Thomson's model. In this experiment, positively charged alpha particles emitted from a radioactive source enclosed within a protective lead were used which was then focused into a narrow beam. It was then passed through a slit in front of which a thin section of gold foil was placed. A fluorescent screen (coated with zinc sulfide) was also placed in front of the slit to detect alpha particles which on striking the fluorescent screen would produce scintillation (a burst of light) which was visible through a microscope attached to the back of the screen.

He observed that most of the alpha particles passed straight through the gold foil without any resistance and this implied that atoms contain a large amount of open space. The slight deflection of some of the alpha particles, the large-angle scattering of other alpha particles and even the bouncing back of a very few alpha particles toward the source suggested their interactions with other positively charged particles inside the atom.

So, he concluded that only a dense and positively charged particle such as the nucleus would be responsible for such strong repulsion. Also, the negatively charged electrons electrically balanced the positive nuclear charge and they moved around the nucleus in circular orbits. Between the electrons and nucleus, there was an electrostatic force of attraction just like the gravitational force of attraction between the sun and the revolving planets.

Later, the Rutherford model was replaced by the Bohr atomic model.

6 0
3 years ago
If 8.74 g of CuNO3 is dissolved in water to make a 0.700 M solution, what is the volume of the solution
Bess [88]
Hope this helps you.

4 0
3 years ago
This is one of the main things I'm having trouble with.
andreev551 [17]
Think it is b
but i am not sure at all
7 0
3 years ago
Other questions:
  • Who is credited with creating the first accurate model of DNA
    15·2 answers
  • Why does the ice melt when you hold it in your hand? A.Heat is transferred from your hand to the ice cube. B.Heat from the ice c
    9·1 answer
  • 2. A gas absorbs 21.39 kJ of energy while expanding against 0.276 atm from a volume of 0.0432 L to 1.876 L. What is the energy c
    12·2 answers
  • The element sulfur is classified as a <br> 1.metal<br> 2. metalliod<br> 3.nonmetal<br> 4.noble gas
    11·2 answers
  • At what temperature is the following reaction at equilibrium? 2Na, O, + 2H,0 + 4NaOH + O, AH° = -109 kJ, ASO = -133.2 J/K
    7·1 answer
  • Lead has a density of 11.3 g/mL. If you have 105 grams of lead,
    10·1 answer
  • Chemical properties of potassium
    11·1 answer
  • The atmosphere traps a part of the Sun’s heat that is reflected from Earth’s surface. This effect, called the greenhouse effect,
    15·1 answer
  • HEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEE
    14·2 answers
  • How much aluminum nitrate can be found when 21g of aluminum react with lead (II) nitrate? Answer in units of mol.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!