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
sdas [7]
3 years ago
8

Subsurface mining disturbs more land than surface mining true or false

Chemistry
1 answer:
Allisa [31]3 years ago
5 0

Answer:

False

Explanation:

Surface mining disturbs more land compared to subsurface mines.

During surface mining, huge mounds of earth is removed inorder to access mineral deposits. The deeper lying the deposit, the more the earth is removed and disturbed.

In subsurface mines, tunnels and a system of shaft are used to access the ore body. Data about the geometry and positioning of the ore helps to plan how to effectively access it.

You might be interested in
HELP 15-21 PLEASE!!!
Harlamova29_29 [7]

Answer:

15. Lead (II) chloride

16. potassium chloride

17. Lithium oxide

18. Arsenious trioxide

19.Phosphorus tribromide

Explanation:

6 0
3 years ago
Read 2 more answers
How many electrons would be exchanged from lithium and fluorine
Vikki [24]
Fluorine - Seven electrons of it's own. 

Lithium would give up one electron, so there for, fluorine is then left with eight.
3 0
3 years ago
Enter an equation to show how h2po3− can act as a base with hs− acting as an acid. Express your answer as a chemical equation. I
vladimir2022 [97]

The acid - base equation between H2PO3^- and HS^- is H2PO3^- +  HS^- ⇄S^- + H3PO3.

<h3>What is an acid?</h3>

An acid is a substance that can donate hydrogen ions while a base is a substance that can accept hydrogen ion. This is the acid base definition according to Brownstead - Lowry.

To show the acid - base relationship between H2PO3^- and HS^-, we have the equation;

H2PO3^- +  HS^- ⇄S^- + H3PO3

Learn more about acids and bases: brainly.com/question/10282816

4 0
2 years ago
Nitrogen is used to keep food frozen during transportation.
Greeley [361]

Answer:

Gaseous nitrogen has unique chemical and physical properties that make it suitable for use in food processing. Nitrogen is inert which means it will not react with prepared food materials, which can alter their aromas or flavors. Also, gaseous nitrogen will effectively displace oxygen minimizing oxidation and the growth of microorganisms that cause foods to lose their freshness and deteriorate faster.

Explanation:

Source: https://www.generon.com/using-nitrogen-gas-in-food-packaging/

4 0
3 years ago
A balloon is filled with 0.250 mole of air at 35°C. If the volume of the balloon is 6.23 liters, what is the absolute pressure
lord [1]

Answer is:  the absolute pressure of the air in the balloon is 1.015 atm (102.84 kPa).

n = 0.250 mol; amount of substance.

V = 6.23 L; volume of the balloon.

T = 35°C = 308.15 K; temperature.

R = 0.08206 L·atm/mol·K, universal gas constant.

Ideal gas law: p·V = n·R·T.

p = n·R·T / V.

p = 0.250 mol · 0.08206 L·atm/mol·K · 308.15 K / 6.23 L.

p = 1.015 atm; presure of the air.

6 0
3 years ago
Other questions:
  • Which event is an example of a contact force?
    15·1 answer
  • What nevres carrys information from the hairs inside the cochlea?
    6·1 answer
  • Use a Punnett square to predict the cross of a homozygous tall parent with a homozygous short parent, if tall is dominant over s
    14·1 answer
  • Hi there needing help with the IUPAC names for these compounds
    12·1 answer
  • How do the percent compositions for C3H6 and C4H7 compare?
    9·1 answer
  • How many moles are present in 450 grams of sodium phosphide, Na3PNa3P?
    8·1 answer
  • Lisa studied the role of the stamen and stigma in the formation of seeds in flowering plants. She removed all the stamen from on
    5·2 answers
  • A secondary step in the process to produce ultra-pure silicon is to combine silicon tetrachloride with magnesium. How many grams
    7·1 answer
  • Describe the quantitative characteristics of all chemical reactions. Explain how we can use these features to make quantitative
    8·1 answer
  • Iron(111)Carbonate +cesium &gt; cesium carbonate +iron balced
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!