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
Ipatiy [6.2K]
3 years ago
15

How does weathering break down or change rocks

Chemistry
1 answer:
tatyana61 [14]3 years ago
3 0
Well weathering adds different elements to rocks which they might not be used to. For example, very hard rain & harsh winds could push a rock, causing it to fall & break off into smaller rocks.
You might be interested in
Why do you think that the electrons are not shown?
snow_lady [41]
Because there to tiny to see
7 0
3 years ago
Zn + I2 ---&gt; Znl2<br> Determine the theoretical yield of the product if 2g of Zn is used
egoroff_w [7]

Answer:

Mass = 9.58 g

Explanation:

Given data:

Mass of Zn = 2g

Theoretical yield of ZnI₂ = ?

Solution:

Chemical equation:

Zn + I₂       →     ZnI₂

Number of moles of Zn:

Number of moles = mass/molar mass

Number of moles = 2g / 65.38 g/mol

Number of moles = 0.03 mol

Now we will compare the moles of Zn and ZnI₂.

                   Zn           :          ZnI₂

                    1             :           1

                  0.03        :         0.03

Mass of ZnI₂:

Mass = number of moles × molar mass

Mass = 0.03 mol × 319.22 g/mol

Mass = 9.58 g

4 0
3 years ago
Calculate the change in enthalpy for the following reaction, using the bond enthalpy data provided below. (Note: you may round t
aliina [53]

Answer:

-514 kJ/mol

Explanation:

The bond enthalpy which is also known as bond energy can be defined as the amount of energy needed to split one mole of the stated bond. The change in enthalpy of a given reaction can be estimated by subtracting the sum of the bond energies of the reactants from the sum of the bond energies of the products.

For the given chemical reaction, the change in enthalpy of the reaction is:

ΔH_{rxn} = [2(409) + 4(388) + 3(496) - 4(630) - 4(463)] kJ/mol = 818 + 1552 + 1488 - 2520 - 1852 = -514 kJ/mol

3 0
4 years ago
7. The nuclear model and the solar system model both show atoms with electrons circling around
Keith_Richards [23]

These models are similar because "both the nuclear model and the solar system model have concept of nucleus, electron, positively charged nucleus at center and electrons orbiting around the nucleus".

<u>Explanation:</u>

The points which showcase similarities among both the atomic structure and the composition of the solar system are like the large percentage of the mass centered in the core which is the nucleus or the sun. Attractive forces bring the structure together by application of electromagnetic force or gravitational force.

The existence of the external objects influences the stable state of other surrounding objects as suggested by Pauli theory of exclusion and gravitational disturbance. Overall on the basis of the view only, in both the model their is similarity like atomic model speaks about electrons orbiting the nucleus similar to planets orbiting the sun.

6 0
3 years ago
Reducing the volume of a contained gas by one third, while holding temperature constant, causes pressure to A. be decreased by t
Nostrana [21]
Reducing the volume of contained gas by one third, while holding temperature constant, causes pressure to D. be increased by one third
5 0
3 years ago
Other questions:
  • Helppppppppppppppppppppppppppppppppppppppppppppppppp
    7·2 answers
  • An element's atomic number is 68. How many protons would an atom of this element have?
    9·2 answers
  • Which colorless and odorless gas, produced by radioactive decay of Uranium-238, is considered to be a cancer-causing agent?
    10·1 answer
  • The "correct" mass of the cylinder had been previously determined to be 27.20 grams. What was the percent error on his first wei
    8·1 answer
  • Select the single best answer. Consider the following half-reactions: MnO4−(aq) + 8H+(aq) + 5e−→ Mn2+(aq) + 4H2O(l) NO3−(aq) + 4
    7·1 answer
  • Consider this reaction: KOH + HBr --&gt; KBr + H2O
    12·2 answers
  • Amino acids are the building blocks of proteins. The simplest amino acid is glycine (H2NCH2COOH). Draw a Lewis structure for gly
    9·1 answer
  • The concentrations of hydrogen ion in two solutions are (a).1×10-4moldm and (b).5×10-9moldm. What is the pH of each solutions?
    10·1 answer
  • What is the molar mass of CH20?
    13·1 answer
  • A way of describing a chemical change that indicates what substances were present before the change and what substances are pres
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!