Burning fossil fuels releases a variety of pollutants into the atmosphere, including carbon dioxide, sulfur dioxide, nitrogen oxides, particulate matter, mercury, etc.
What is pollution?Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, contributing to global warming and climate change. Burning fossil fuels, such as coal, oil, and natural gas, is the largest source of human-generated carbon dioxide emissions. When fossil fuels containing sulfur are burned, they release sulfur dioxide into the air. Sulfur dioxide can react with other compounds in the atmosphere to form acid rain, which can damage crops, forests, and buildings. Burning fossil fuels also releases nitrogen oxides, which contribute to the formation of smog and acid rain. Nitrogen oxides can also react with other compounds in the atmosphere to form ozone, which is harmful to human health.
Hence, Burning fossil fuels releases a variety of pollutants into the atmosphere, including carbon dioxide, sulfur dioxide, nitrogen oxides, particulate matter, mercury, etc.
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Choose all the right answers.
An organism is:
a unicellular organism
any cell
only a plant
only an animal
a plant or an animal
Answer: a unicellular organism & plant or animal
Explanation: a organism is any unicellular plant, animal or single celled life form.
a unicellular organism and a plant or an animal
Which organisms compete for the same food source?
zooplankton and herbivorous duck
tundra swan, sea duck and geese and mute swans
tundra swan, sea duck and herbivorous duck
phytoplankton, zooplankton and tundra swan
Answer:
tundra swam,sea duck and herbivorous swan
What could happen if yours was damaged or malfunctioning?
Answer:
You may experience the sudden onset of one or more symptoms, such as: Numbness, tingling, weakness, or inability to move a part or all of one side of the body (paralysis). Dimness, blurring, double vision, or loss of vision in one or both eyes. Loss of speech, trouble talking, or trouble understanding speech.
Answer:
Stress, infection and changes in your blood's fluid and electrolyte balance can also influence hormone levels.
Explanation:
Summary
1.
Water is the most abundant substance on the surface of the earth.
About 71% of the earth's surface is covered by water.
2. Hydrogen is prepared in the laboratory by the action of zinc on
dilute hydrochloric acid or dilute sulphuric (VI) acid.
3. Hydrogen burns in oxygen to produce water. Water is an oxide
of hydrogen.
4. Active metals react with cold water to produce hydrogen gas
and the hydroxide of the metal in solution. Less active metals
react with steam to produce hydrogen and the oxide of the metal.
Copper and lead do not react with water.
5. Hydrogen is a reducing agent. It removes combined oxygen
from metal oxides of the less reactive metals.
6.
Reduction is the loss of oxygen from a compound. Oxidation is
the gain of oxygen by a substance.
7.
A reducing agent is a substance which removes oxygen from
another substance. An oxidising agent is a substance which gives
out oxygen to another substance.
when
water changes the
colour of coppe - 11
Revision Exercise sulphatorom blueto
1. (a) State the chemical tests for presence of water.
water change the color
(b) State the test, which is used to show that water is pure. Chistide paper from b
of copper anhydrous cobele
2.
Describe an experiment to show that water is an oxide of hydrogen.t non
3. State the precautions that must be taken when carrying out experiments with hydrogen.
Why is it not advisable to use iron in making steam boilers?
Write a word equation for a reaction in which hydrogen acts as a reducing agent.
Name the products formed when kerosene is burned in air.
State what is observed when a small piece of potassium is placed in water. Write a
word equation for the reaction.
Draw a labelled diagram to show how a reaction between steam and magnesium should
be carried out.
Describe how dry hydrogen is prepared in the laboratory.
Property of the Government of Kenya
Potassium
sodium
Calcim
Magne
Alun
Corbi
Zin
Explanation:
I know only one.You are in form.....
Which field of study examines homologous structures?
A) Genetics
B) Embryology
C) Comparative Anatomy
D) Physics
How many grams of chlorine gas react when 266.28 grams of aluminum reacts?
2Al(s) + 3Cl2 (g) --> 2AlCl3 (s) (balanced)
Answer:
To solve this question first find the molar mass of Aluminum and then convert the amount grams of Aluminum to moles of aluminum and then use the mole to mole ratio to determine the moles of Chlorine gas that would have reacted with the moles of Aluminum, and then after convert that many moles into grams to find the solution to this question.
What does the M in Newton's law equation stand for?
In Newton's 2nd law, written in terms of force, mass and acceleration, m stands for the mass in the original Newton's work, i.e. the quantity of the substance which makes up a material body.
Have a great day/ night hope this helped out <33
which would most likely cause a rise in sea levels
Answer:
B. melting of ice caps
Explanation:
Substances that can carry electric current under some conditions but not under others are called semiconductors.
Which of the following substances
represents a compound?
A. saline: NaCl and H,0
B. helium: H
c. carbon dioxide: CO
D. iron; Fe
Al2(SO4)3 + CaCl2 → AlCl3 + CaSO4
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PLEASE HELP I REALLY NEED THIS IM LATE
Answer:
Pitch:it refers to the highest and lowness of a sound.
Wavelength: It is the distance measured from one crest to another, or from one trough to another.
Refraction of Light: The light bends as it travels from one medium to another.
Reflection of Light: It happens when light bounces back after hitting a well-polished surface.
Crest: The highest point of the wave from the center.
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What is deforestation?
A
the process of finding medicine ingredients in the rainforest
B
the planting of new trees on empty land
с
the process by which trees soak up carbon dioxide
D
the cutting down of existing forests
Answer:
D.
Explanation:
The action of clearing a wide area of trees.
B) A company president would like to offer a 4.00 L cylinder containing 500 g of chlorine in the new catalog. The cylinders you have on hand have a rupture pressure of 40 atm. Use both the ideal gas law and the van der Waals equation to calculate the pressure in a cylinder at 25°C. Given a = 6.58 L2 atm mol-2 and b = 0.056 L mol-2, Cl =35.5. (5 marks)
Answer:
43.1atm is the pressure using gas law and 27.2atm using Van der Waals Law.
Explanation:
Ideal gas law is:
PV = nRT
Where P is pressure in atm
V is volume = 4.00L
n are moles of the gas (For chlorine Molar Mass: 70.90g/mol):
500g * (1mol / 70.90g) = 7.052 moles
R is gas constant = 0.082atmL/molK
T is absolute temperature = 25°C + 273 = 298K
To solve the pressure, P:
P = nRT/V
P = 7.052mol*0.082atmL/molK*298K / 4.00L
P = 43.1atm is the pressure using gas law.
Van der Waals equation is:
[tex]P + a(\frac{n}{V})^2 * (V-nb) = nRT[/tex]
Where a is 6.58L²atm*mol⁻²
b = 0.056Lmol⁻²
Solving for pressure:
[tex]P + a(\frac{n}{V})^2 = \frac{nRT}{(V-nb)}[/tex]
[tex]P = \frac{nRT}{(V-nb)}-a(\frac{n}{V})^2[/tex]
[tex]P = \frac{7.052mol*0.082atmL/molK*298K}{(4.00L-7.052mol*0.056L*mol)}-6.58L^2mol^{-2}(\frac{7.052mol}{4.00L})^2[/tex]
P = 172.323 / 3.6051 - 20.4866
P = 27.2atm using Van der Waals Law
what is
the sum total of all water on earth and its atmosphere is called
Answer:
Biosphere.
Explanation:
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what are Noble Gases?
Answer:
any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive but compounds of xenon, krypton, and radon are now known.
Explanation:
The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
help me get this right no links
Answer:
The moons gravitational pull on Earth
At what temperature do atoms lose all of their Kinetic Energy?
zero kelvin, or minus 459.67 degrees Fahrenheit (minus 273.15 degrees Celsius)
890J of heat are applied to a piece of aluminum, causing a 4.6°C increase in its temperature. The specific heat of aluminum is 0.902 J/g°C. What is the mass of aluminum?
Question 12 options:
175g
3,693g
214g
0.00220g
Answer:
214
Explanation:
Q=mco
Q=heat
M is mass
C is specific heat
O is increased in temperature
Does someone know the answers?
Answer:
b)sugar and water : Sedementation
d) salt and water : evaporation
How many kilojoules of heat are required to heat 2550 grams of water from 17.5°C to 100.0°C?
880.209 kilojoules of heat are required to heat 2550 grams of water from 17.5°C to 100.0°C.
HOW TO CALCULATE SPECIFIC HEAT:The amount of energy released or absorbed by a substance can be calculated using the following expression:
Q = m × c × ∆T
where;
Q = quantity of heat in Joulesm = mass of substance∆T = change in temperatureAccording to this question;
m = 2550g∆T = 100 - 17.5 = 82.5°CQ = 2550 × 4.184 × 82.5
Q = 880,209J
Q = 880.209kJ.
Therefore, 880.209 kilojoules of heat are required to heat 2550 grams of water from 17.5°C to 100.0°C.
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Two graphs above show a catalytic reaction, which color of balls represents a catalyst?
Select one:
a. Purple
b. Blue
c. Red
d. Green
Coral reefs are essential for the survival of other organisms. They provide::
A. Microhabitats
B. Shelter
C. Breeding grounds
D. All of the above
“Science”
Which process is exothermic?
a) the vaporization of water b) the freezing of water c)the sublimation of dry ice d ) the boiling of liquid nitrogen
Answer:
Freezing of water
Explanation:
When water becomes a solid it releases heat into its surroundings (warming it up).
why should the wearing of uniforms be discontinued in highscho
Can anyone help me with this question??
No links please!
Answer: 6
Explanation: 2*3=6
Is oil a no renewable energy source
Answer:
Yes, oil is a non renewable energy source
Explanation:
Because once these resources are used up, they cannot be replaced.
Answer:
yes its a nonrenewable resource because once you use it you cant put it back
Explanation:
A .332 mold sample of gas at a constant pressure and temperature has a volume of 150.0mL. If the volume of the gas is decreased to 50.0mL, how many moles of the gas will remain
Answer:
0.111 mol
Explanation:
We can solve this problem by using Avogadro's law, which states that at constant pressure and temperature:
V₁n₂=V₂n₁Where in this case:
V₁ = 150.0 mLn₂ = ?V₂ = 50.0 mLn₁ = 0.332 molWe input the data given by the problem:
150.0 mL * n₂ = 50.0 mL * 0.332 molAnd solve for n₂:
n₂ = 0.111 molThe following chemical equations are organized by reaction type. You must balance each reaction, and show your work
Answer:
lets be honest
Explanation:
no one knows and this is worthless to answer for the worth of 5 points