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
Zepler [3.9K]
3 years ago
7

Which is an example of physical weathering?

Chemistry
1 answer:
kirill115 [55]3 years ago
7 0

answer: bits of rock rusting when exposed to oxygen and water

Explanation: i think because when it rains the water is left and freezes and night making the rock expand or start to Rust

You might be interested in
Given the reaction at equilibrium n2(g) + 3h2(g) ↔ 2nh3(g) increasing the concentration of N2(g) will increase the forward react
Shtirlitz [24]

Answer: For the given reaction an increase in the forward reaction rate due to increase in the number of effective collisions.

Explanation:

According to the rate law, rate of a reaction depends on the concentration of its reactants. So, more is the number of reactants then more will be the number of collisions taking place.

As a result, more will be the amount of product formed. For example, in the reaction N_{2}(g) 3H_{2}(g) \rightleftharpoons 2NH_{3}(g) an increase in N_{2}(g) means an increase in the number of reactants.

Hence, more is the number of collisions taking place leading to more amount of formation of products.

Thus, we can conclude that for the given reaction an increase in the forward reaction rate due to increase in the number of effective collisions.

5 0
3 years ago
Which of the following solids has the highest melting point?(1) H2O(s) (3) SO2(s)(2) Na2O(s) (4) CO2(s)
Sergeu [11.5K]
The answer is (2) Na2O. Considering these compounds status under room temperature. H2O is liquid. CO2 and SO2 are gas. Na2O is solid. So the Na2O has the highest melting point.
3 0
4 years ago
The ΔHvap of a certain compound is 47.45 kJ·mol−1 and its ΔSvap is 59.15 J·mol−1·K−1. What is the boiling point of this compound
podryga [215]

Answer:

802.2 K

Explanation:

To solve this problem we can use the formula:

  • Tb = ΔHvap / ΔSvap

Where Tb is the boiling point (in K).

We already know the values of both ΔHvap and ΔSvap, so we calculate Tb:

  • ΔHvap = 47.45 kJ·mol⁻¹ = 47.45x10³J·mol⁻¹

Tb = 47.45x10³J·mol⁻¹/59.15 J·mol⁻¹·K⁻¹

  • Tb = 802.2 K

So the boiling point of the compound is 802.2 K (or 529 °C)

7 0
3 years ago
When the contour lines are farther apart, is the slope more gradual or gentle.
nignag [31]

Hi Zyshoun32,

Your Question:

When the contour lines are farther apart, is the slope more gradual or gentle.

Answer:

<u>When the slope is more gradual the farther the contour lines are.</u>

When the slope is more steeper the closer the contour lines are.

4 0
3 years ago
A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 6
blondinia [14]
Specific heat is the amount of heat absorb or released by a substance to change the temperature to one degree Celsius. To determine the specific heat, we use the expression for the heat absorbed by the system. Heat gained or absorbed in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:

Heat = mC(T2-T1)

By substituting the given values, we can calculate for C which is the specific heat of the material.

2510 J = .158 kg ( 1000 g / 1 kg) (C) ( 61.0 - 32.0 °C)
C = 0.5478 J / g °C
6 0
3 years ago
Other questions:
  • Then what is formula for magnesium chlorate?
    8·1 answer
  • The number of grams of water vapor in a cubic meter of air is called the
    14·1 answer
  • How does heat transfer takes place between any two systems?
    5·1 answer
  • Most of the mass of an atom is contained in its _____. A. electrons B. protons C. nucleus D. neutrons
    7·1 answer
  • Does polarity affect the rate of diffusion? explain your answer using scientific principles.
    11·2 answers
  • How to politly be friends with someone you dont like
    8·2 answers
  • All isotopes of an element with an atomic number greater than ___ are radioactive.
    5·1 answer
  • 1. 62 miles per hour into meters per second
    5·1 answer
  • The combination of a carbonyl group and a hydroxyl group on the same carbon atom is called a8 6. a) carbamate group b) carbonate
    15·1 answer
  • If a solution contains all the solute it can hold at a given temperature, it is said to be ________________
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!