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
noname [10]
3 years ago
6

What are some consequences of using land as a resource

Chemistry
1 answer:
ivanzaharov [21]3 years ago
4 0

Urban development has been linked to many environmental problems, including air pollution, water pollution, and loss of wildlife habitat. Urban runoff often contains nutrients, sediment and toxic contaminants, and can cause not only water pollution but also large variation in stream flow and temperatures.

You might be interested in
A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is
Inessa05 [86]

Answer:

T=2.78x10^3 \°C

Explanation:

Hello,

In this case, considering that the safe temperature may be computed via the ideal gas law as we now the pressure, mass and volume via the dimensions:

V=\pi r^2 h=\pi *(41.0cm)^2*49.2cm=2.60x10^5cm^3*\frac{1L}{1000cm^3} =260L

The pressure in atm is:

P=3.70MPa*\frac{1x10^6Pa}{1MPa} \frac{1atm}{101325Pa} =36.5atm

And the moles considering the mass and molar mass (66 g/mol) of dinitrogen difluoride (N₂F₂):

n_{N_2F_2}=2.50kg*\frac{1000g}{1kg}*\frac{1mol}{66g} =37.9mol

In sich a way, by applying the ideal gas equation, which is not the best assumption but could work as an approximation due to the high temperature, the temperature, with three significant figures, will be:

T=\frac{PV}{nR}=\frac{36.5Pa*260L}{37.9mol*0.082\frac{atm*L}{mol*K} }\\  \\T=3053.6K-273.15\\\\T=2.78x10^3 \°C

Best regards.

7 0
3 years ago
Are ALL cations positive or negative ions
Mamont248 [21]

Answer:  Ions result from atoms or molecules that have gained or lost one or more valence electrons, giving them a positive or negative charge. Those with a negative charge are called anions and those with a positive charge are called cations. Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. ... And all of them form an anion with a single negative charge. The VIA elements gain two electrons to form anions with a 2- charge.

hope this helps

7 0
3 years ago
Read 2 more answers
when 45 grams of copper (ii) carbonate are decomposed with heat how many grams of carbon dioxide will be produced
Maksim231197 [3]

Answer:

16.02 g

Explanation:

the balanced equation for the decomposition of CuCO₃ is as follows

CuCO₃ --> CuO + CO₂

molar ratio of CuCO₃ to CO₂ is 1:1

number of CuCO₃ moles decomposed - 45 g / 123.5 g/mol = 0.364 mol

according to the molar ratio

1 mol of CuCO₃ decomposes to form 1 mol of CO₂

therefore 0.364 mol of  CuCO₃ decomposes to form 0.364 mol of CO₂

number of CO₂ moles produced - 0.364 mol

therefore mass of CO₂ produced - 0.364 mol x 44 g/mol = 16.02 g

16.02 g of CO₂ produced

8 0
4 years ago
Which two solutions, when mixed together, will undergo a double replacement reaction and form a white, solid substance?
IceJOKER [234]

AgNO_3 + KCl → AgCl + KNO_3 undergo a double replacement reaction and form a white, solid substance. Hence, option B is correct.

<h3>What is a double replacement reaction?</h3>

A double replacement reaction is a type of chemical reaction that occurs when two reactants exchange cations or anions to yield two new products.

Double-replacement reactions generally occur between substances in aqueous solution. In order for a reaction to occur, one of the products is usually a solid precipitate, a gas, or a molecular compound such as water.

AgNO_3 + KCl → AgCl + KNO_3 undergo a double replacement reaction and form a white, solid substance.

Hence, option B is correct.

Learn more about the double replacement reaction here:

brainly.com/question/19267538

#SPJ1

4 0
2 years ago
1. For each of your three trials state the following:
11111nata11111 [884]

did u ever get the answer ? I’m also on k12 stuck on this lol

8 0
3 years ago
Read 2 more answers
Other questions:
  • Approximately what volume do 3.0 moles of kr gas occupy at stp? 80.0 40.0 l none of the above 20.0
    5·2 answers
  • Water is an example of an______________ compound.?
    5·1 answer
  • 2
    14·2 answers
  • What is the result of a decrease in salinity in the ocean? Select all that apply.
    10·2 answers
  • As part of the photoelectric effect, which of these is responsible for the pixels in an image on a digital camera?Aaccumulated e
    9·2 answers
  • For each of the experiments described below, design a table to record the results.
    12·1 answer
  • A combustion analysis of a 0.503 g sample of an unknown hydrocarbon yields 1.53 g CO 2 2 ​ and 0.756 g H 2 2 ​ O. What is the em
    10·1 answer
  • PLEASE HELP!!!! ASAPP
    7·2 answers
  • Which conversion factor is the correct one ?
    14·1 answer
  • Ionization energy generally decreases down a group because as one moves down a group, the outermost electron moves _____ the nuc
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!