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
posledela
3 years ago
10

Chemical weathering involves the breakdown of material due to ________. A. mechanical breakdown of rock B. baking in the hot sun

C. interaction with molten rock D. interaction with water or air
Chemistry
1 answer:
kykrilka [37]3 years ago
8 0

Answer: 1) weathering is the process of something wearing away and breaking into smaller pieces, erosion is where things like water, wind, ice and gravity wear away rocks and soil and moves it from one location to another.

2) chemical weathering is when the rock changes a mineral and mechanical weathering is when it changes physically, like breaking into smaller pieces

3) when sheets of rocks peel away

Explanation:

You might be interested in
Number of
Sever21 [200]

Answer:1:En química, el número másico o número de masa es la suma del número de protones y el número de neutrones del núcleo de un átomo. Se simboliza con la letra A (el uso de esta letra proviene de alemán Atomgewicht, que quiere decir peso atómico, aunque sean conceptos distintos que no deben confundirse).

2:

4 0
3 years ago
In a calorimeter, the equilibrium temperature of copper in water is determined. if the water is replaced with a liquid that has
Feliz [49]
The equilibrium temperature will increase
4 0
3 years ago
The device shows the relative humidity at 22°
sergeinik [125]
The relative humidity shows us saturation of water in air. Since it is 58% and not 100% we have to scale density that we were given when humidity is 100%.

At 100% humidity, density is 20grams/cubic meter

at 58% it will be:
0.58 * 20 = 11.6 g/m^3

Since the question is to find density, the answer cannot be in %.

Answer is 11.6 g/m^3
4 0
3 years ago
Read 2 more answers
Calculate the standard reaction Gibbs free energy for the following cell reactions: (a) 2 Ce41(aq) 1 3 I2(aq) S 2 Ce31(aq) 1 I32
Law Incorporation [45]

<u>Answer:</u>

<u>For a:</u> The standard Gibbs free energy of the reaction is -347.4 kJ

<u>For b:</u> The standard Gibbs free energy of the reaction is 746.91 kJ

<u>Explanation:</u>

Relationship between standard Gibbs free energy and standard electrode potential follows:

\Delta G^o=-nFE^o_{cell}           ............(1)

  • <u>For a:</u>

The given chemical equation follows:

2Ce^{4+}(aq.)+3I^{-}(aq.)\rightarrow 2Ce^{3+}(aq.)+I_3^-(aq.)

<u>Oxidation half reaction:</u>   Ce^{4+}(aq.)\rightarrow Ce^{3+}(aq.)+e^-       ( × 2)

<u>Reduction half reaction:</u>   3I^_(aq.)+2e^-\rightarrow I_3^-(aq.)

We are given:

n=2\\E^o_{cell}=+1.08V\\F=96500

Putting values in equation 1, we get:

\Delta G^o=-2\times 96500\times (+1.80)=-347,400J=-347.4kJ

Hence, the standard Gibbs free energy of the reaction is -347.4 kJ

  • <u>For b:</u>

The given chemical equation follows:

6Fe^{3+}(aq.)+2Cr^{3+}+7H_2O(l)(aq.)\rightarrow 6Fe^{2+}(aq.)+Cr_2O_7^{2-}(aq.)+14H^+(aq.)

<u>Oxidation half reaction:</u>   Fe^{3+}(aq.)\rightarrow Fe^{2+}(aq.)+e^-       ( × 6)

<u>Reduction half reaction:</u>   2Cr^{2+}(aq.)+7H_2O(l)+6e^-\rightarrow Cr_2O_7^{2-}(aq.)+14H^+(aq.)

We are given:

n=6\\E^o_{cell}=-1.29V\\F=96500

Putting values in equation 1, we get:

\Delta G^o=-6\times 96500\times (-1.29)=746,910J=746.91kJ

Hence, the standard Gibbs free energy of the reaction is 746.91 kJ

7 0
3 years ago
How many milliliters of an aqueous solution of 0.164 M chromium(II) bromide is needed to obtain 2.26 grams of the salt? ____mL
Mila [183]
The answer would possible 0.25ml
7 0
2 years ago
Other questions:
  • If oxygen, symbol o, undergoes a covalent bond it wants to form how many bonds
    7·2 answers
  • Radioactive gold-198 is used in the diagnosis of liver problems. the half-life of this isotope is 2.7 days. if you begin with a
    10·1 answer
  • If y &gt; z, which of the following equations must be true?
    14·1 answer
  • Why do cars need a cooling system in conjunction with the engine?
    5·1 answer
  • 25 POINTS
    14·2 answers
  • 15. Within a voltaic cell,___
    9·1 answer
  • Which of the following is the correct skeleton equation for the reaction that takes place when solid phosphorus combines with ox
    12·1 answer
  • What is the correct chemical formula for copper carbonate
    8·2 answers
  • Samples of four group 18 elements,antimony, arsenic,bismuth and phosphorus are in the gaseous phase. An atom in the ground state
    13·1 answer
  • Can someone pleas help
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!