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
lawyer [7]
3 years ago
10

The granite statue of a hero in the local park is discolored.Your friend suggests that the rain will clean the statue.Do you agr

ee? Explain your response
Chemistry
1 answer:
podryga [215]3 years ago
7 0

Answer:

No because the statue is discolored from weathering.

Explanation:

Since the statue was already discolored, that means the substance has been acted upon by a process known as weathering .

Weathering is the breaking down of rocks or dissolving of rocks by the action of rain water, biological activities and temperatures changes. Weathering may be mechanical or chemical . Mechanical weathering live no changes in the overall chemical change of the weathered rock.

Chemical weathering usually occurs when rain water reacts with mineral constituent of rock to form a new minerals like clay and soluble salt. The Chemical changes can be more rapid if the rain water is slightly acidic. The rainwater in the presence of oxygen(oxidation),  because of it acidity may have caused the discoloration of the granite rock. Rain water will likely promotes weathering not the other way round

You might be interested in
How does energy transfer from the sun to earth and the atmosphere
kumpel [21]

through conduction, radiation, and convection.

4 0
3 years ago
Compare and contrast how observations and results can be used to
worty [1.4K]

Answer:

by statistical analyses, especially by determining the p-value

Explanation:

In general, observations and results obtained from experimental procedures are subjected to a statistical test to check the robustness of the working hypothesis. The p-value is the most widely used statistical index in order to test such observations and results. The p-value is the statistical probability of obtaining extreme observed results when the null hypothesis is considered correct. A p-value lesser than 0.05 generally is considered statistically significant and then the null hypothesis can be rejected. In consequence, a very low p-value (which is obtained by statistical analysis of the observations and results), indicates that there is strong evidence in support of the alternative hypothesis.

5 0
3 years ago
Read 2 more answers
A 7.5 L cylinder contains 5 moles of gas at a temperature of 274°C. What is its pressure in kiloPascals (kPa)?
AleksAgata [21]
<h3><u>Answer;</u></h3>

 = 3032.15 kPa

<h3><u>Explanation;</u></h3>

Using the equation;

PV = nRT , where P is the pressure,. V is the volume, n is the number of moles and T is the temperature and R is the gas constant, 0.08206 L. atm. mol−1.

Volume = 7.5 L, T = 274 +273 = 547 K, N = 5 moles

Therefore;

Pressure = nRT/V

               = (5 × 0.08206 × 547)/7.5 L

               = 29.925 atm

But; 1 atm = 101325 pascals

Hence; Pressure = 3032150.63 pascals

                            <u>= 3032.15 kPa</u>

               

3 0
3 years ago
Ocean water Choose one: A. is less dense than freshwater. B. salinity decreases as seawater evaporates. C. contains dissolved sa
Genrish500 [490]

Answer: the answer is C

Explanation:

8 0
3 years ago
This chemical equation represents a chemical reaction.
Strike441 [17]

Explanation:

products are Nacl + H20

5 0
3 years ago
Other questions:
  • Benzene has a specific gravity of 0.88. if it was spilled in a river what would it do?
    13·1 answer
  • A scientist analyzes four samples of compounds. He finds the first compound contains 10 grams of sodium, 211 grams of potassium,
    9·1 answer
  • Ants live on acacia trees in South America. The ants feed on sugars secreted by the trees. The trees provide room for the ants t
    5·1 answer
  • When a 1.0 M solution of HCl is titrated with a 1.0 M solution of KOH, which is the approximate pH at the equivalent point?
    11·1 answer
  • What is the scientific method?
    5·1 answer
  • The number of electrons in an oxide ion O^2- is?
    7·1 answer
  • Determine the number of atoms present in 4.5 mols of Calcium
    6·1 answer
  • What do the red arrows represent
    6·1 answer
  • What describes an impermeable rock where oil and natural gas deposits are found ?
    9·1 answer
  • How does marketing affect the consumer mindset?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!