Answer:
Part 1 using forests wisely:
Summarize the scientific information that leads to conservation in each of the articles. People are cutting down trees at a panicking rate. A ton of animals and people live in forests and by taking down trees, is taking down their habitat which is causing them to lose their shelter/living place.
Part 1 community conservartion:
People are destroying the forest which is the Gorillas home. People are also hurting these animals and if people keep doing this the Gorillas can go extinct. Mountain Gorillas are one of humanity’s closest relatives, sharing as much as 99% of our DNA.
Part 2 using forests wisely:
What social issues affected the problem or its solution in each of the stories? If people stop cutting down as many trees, there won’t be as many resources from that such as paper, and the cost may go up. Companies will be mad if people stop them from doing business, for example, cutting down trees. Cutting down trees will allow people to make money but if they don’t then they won’t be able to make as much money.
Part 2 community conservation:
If there aren’t as many Gorillas left the prices for the tourists will rise. That won’t be good for the tourists because then they will have to pay more money and some people don’t have a lot of money so that means that there will be less tourists.
Part 3 community conservation:
How did economics delay scientists' first attempts for conservation in each story?|If people keep killing the Gorillas then there won’t be any Gorillas for the tourists to see. If no tourists come that means that there will be no money for the villagers because the tourists are a big part of the economy there. If there is no money from the tourist then there is going to be no job opportunities for the villagers.
Part 4 community conservation:
Describe the political actions that led to successful conservation in both stories.|The political actions that led to success in the forest industry is what they call a FC company that makes the forest industry true. They make it out of a factory and it can make it very successful and accomplished.
Explanation:
I don't have the answers for using forests wisely for number 3 and 4. I'm sorry
If there are 42g of H in methane (CH4) how many grams of C are present?
Answer:
126 grams of C
Explanation:
Molar mass of C = 12
Molar mass of H = 1
In methane (CH4) the ratio of the masses of carbon to hydrogen is given as;
C : H = 12g : 4g = 3g : 1g
This means there is 3g of C to 1g of H. If there are 42g of H, how many C..?
3 = 1
x = 42
x = 126 grams of C
a.
Na3PO4 + _HCI - H3PO, + _NaCl
What type of reaction and balance the equation
Answer:
Molar Mass
Explanation:
What is the molecular mass of NaCl *
22.990 g/mol
58.44 g/mol
35.45 g/mol
227.425 g/mol
Please help me
At a depth of 100 ft in water, the external pressure is 4.0 atm. What is the solubility of N2 from air in blood at this pressure
Answer:
Solubility = 2.142 x [tex]10^{-4}[/tex] M
Explanation:
Solution:
Note: This question is incomplete and lacks necessary data to solve this question. But I have found similar question on the internet and fetched the necessary data to solve:
Missing Data:
Number of Moles of N2 dissolved per litre of blood = 5.357 x [tex]10^{-4}[/tex] M
As we know that, the air is approximately. 78 mol % of N2
N2 = 0.78
Partial pressure of the N2 at 100 ft:
Partial Pressure = 0.78 x (4.0)
Partial Pressure = 3.12 atm
Now, this is 4 times the pressure of nitrogen at 1 atm air pressure.
SO,
According to the Henry's Law, we have:
Solubility = k x [tex]P_{g}[/tex]
Here, k = 4 times
So,
Solubility = 4 x (5.357 x [tex]10^{-4}[/tex])
Solubility = 2.142 x [tex]10^{-4}[/tex] M
An observation made using your five senses. Example, “The room feels hot.”
This chicken tastes good
urgent please help me!!!
Explanation:
A. lithium hydroxide =LiOH
B. sodium cyanide =NaCN
C. Magnesium nitrate = Mg(NO3)2
D. Barium sulfate = BaSO4
E. Aluminum nitride = AlN
F. Potassium phosphate = KH2PO4
G. Ammonium bromide = NH4Br
H.Calcium carbonate = CaCO3
which structure below represents the arrangement of atoms in pure copper ?.
Which element could provide one atom to make an ionic bond with oxygen?
Answer:
Magnesium
Explanation:
The element that could provide one atom to make an ionic bond with oxygen is magnesium.
Generally, most group II elements will form an ionic bond with oxygen with just one atom.
An ionic bond forms by the transfer of electrons from one specie to another.
Oxygen has a charge of 2-, to use one atom to form ionic bond with this specie, a magnesium atom with 2+ charge will bond with the specie.
This will form:
MgO
This is notable for other group II elements.
Luis is helping his parents paint a border around the walls of a room. He uses a stencil to repeat the same design on each wall to form one long grapevine with a bunch of grapes every foot along its length. What type of chemical reaction does this best model
Answer:
Polymerization.
Explanation:
Polymerization can be defined as a type of chemical reaction in which molecules that are relatively small in size chemically combine to form a huge chain of molecules.
Simply stated, polymerization refers to a chemical reaction where two or more smaller molecules react to produce larger molecules of the same network or repetitive structural units.
In polymerization, the relatively small molecules are generally referred to as monomers while the larger molecules they produce are known as polymers.
Polymerization is given by the chemical formula;
nA -----> A(n).
In this scenario, Luis uses a stencil to repeat the same design on each wall to form one long grapevine with a bunch of grapes every foot along its length.
Hence, the type of chemical reaction this best model is polymerization because it involved repeating the same design (monomers) to form a long grapevine with a bunch of grapes (polymers).
Answer:
C. (Polymerization)
Explanation:
Polymerization is the process by which monomers combine in long strands to form polymers. Since Luis is repeating the same design on each wall, that means he is continuing with the design throughout the room, it is a form of polymerization.
I hope this helps you! :D
A cylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon, and 5.00 moles of helium.
If the gas mixture is at STP, what is the partial pressure of the argon?
PRACTICE MULTIPLE CHOICE QUESTIONS FROM UNIT 10
1.) A cylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon, and 5.00 moles of helium. If
the gas mixture is at STP, what is the partial pressure of the argon?
(A) 152 torr (B) 228 torr (C) 380. torr (D) 760. torr
2.) Compared to the average kinetic energy of 1 mole of water at 0 oC, the average kinetic energy
of 1 mole of water at 298 K is
(A) the same, and the number of molecules is the same
(B) the same, but the number of molecules is greater
(C) greater, and the number of molecules is greater
(D) greater, but the number of molecules is the same
3.) If the pressure on a given mass of gas in a closed system is increased and the temperature
remains constant, the volume of the gas will
(A) decrease (B) increase (C) remain the same
4.) Which gas has approximately the same density as C2H6 at STP?
(A) NO (B) NH3 (C) H2S (D) SO2
5.) At a temperature of 273 K, a 400. milliliter gas sample has a pressure of 760. millimeters of
mercury. If the pressure is changed to 380. millimeters of mercury, at which temperature will
this gas sample have a volume of 551 milliliters?
(A) 100 K (B) 188 K (C) 273 K (D) 546 K
Get the answers to these questions
Back to the Unit 10 Old Tests Page
Back to the Unit 10 Page
Back to the Main Page
Considering the Dalton's partial pressure and STP conditions, the total pressure of argon in the mixture of gases is 0.3 atm.
On one side, the STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.
On the other side, the pressure exerted by a particular gas in a mixture is known as its partial pressure.
So, Dalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:
[tex]P_{T} =P_{1} +P_{2} + ... + P_{n}[/tex]
where n is the number of gases in the gaseous sample.
Dalton's partial pressure law can also be expressed in terms of the mole fraction of the gas in the mixture.
So in a mixture of two or more gases, the partial pressure of gas A can be expressed as:
[tex]P_{A} =x_{A} P_{T}[/tex]
In this case, the mole fraction of the argon can be calculated knowing that:
number of moles of argon= 3 molestotal number of moles= 2 moles of nitrogen + 3 moles of argon + 5 moles of helium= 10 molesThen:
[tex]x_{argon} =\frac{3 moles}{10 moles} = 0.3[/tex]
So, if the gas mixture is at STP, the total pressure of the gas mixture is 1 atm and the partial pressure of argon can be calculated as:
[tex]P_{argon} =x_{argon} P_{T}[/tex]
[tex]P_{argon} =0.3x 1 atm[/tex]
[tex]P_{argon} =0.3 atm[/tex]
In summary, the total pressure of argon in the mixture of gases is 0.3 atm.
Learn more:
brainly.com/question/14239096?referrer=searchResults brainly.com/question/25181467?referrer=searchResults brainly.com/question/141194172.In a titration, 25.00 cm3 of a solution of hydrochloric acid reacted with 18.40 cm3 of sodium hydroxide solution of concentration 0.15 mol/dm3.
The equation which represents the reaction is:
HCl + NaOH -----> NaCl + H2O
Calculate the concentration of hydrochloric acid in mol/dm3
Answer:
0.11mol/dm³
Explanation:
The reaction expression is given as:
HCl + NaOH → NaCl + H₂O
Volume of acid = 25cm³ = 0.025dm³
Volume of base = 18.4cm³ = 0.0184dm³
Concentration of base = 0.15mol/dm³
Solution:
The concentration of hydrochloric acid = ?
To solve this problem, let us first find the number of moles of the base;
Number of moles = concentration x volume
Number of moles = 0.15mol/dm³ x 0.0184dm³ = 0.00276mol
From the balanced reaction equation;
1 mole of NaOH will combine with 1 mole of HCl
Therefore, 0.00276mol of the base will combine with 0.00276mol of HCl
So;
Concentration of acid = [tex]\frac{number of moles }{volume}[/tex] = [tex]\frac{ 0.00276}{0.025}[/tex] = 0.11mol/dm³
How did the Europeans influence Latin America in their religion and language
Answer:
The spaniards are the reason most countries in latin america's main language is spanish
Explanation:
AV
5. How many grams are in 0.52 moles of H3PO4?
Answer:
50.96g
Explanation:
Given parameters:
Number of moles of H₃PO₄ = 0.52moles
Unknown:
Mass of the compound = ?
Solution:
To find the mass of the compound:
Mass = number of moles x molar mass of H₃PO₄
Molar mass of H₃PO₄ = 3(1) + 31 + 4(16) = 98g/mol
Mass = 0.52 x 98 = 50.96g
What does the Theory of Plate Tectonics state
The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.
Answer:
the theory of plate tectonic state that the plates move due to asthosphere
is the biosphere contains only non-living thing true or false
Answer:
False
Explanation:
It’s both living and non living
Answer:
False
Explanation:
In biospheres, there are both living and nonliving objects present! There are typically large abundances of living objects, such as animals, trees, grass, etc. There are also nonliving objects included in biospheres that are necessary for the prosperity of the living creatures! Examples of these nonliving objects include water for hydration, air for breathing, soil for growth, etc. A biosphere is where all living things are found on Earth, so the question is false since both types of things are found within them and not just nonliving things!
convert 7.9 x 10^22 atoms of Ca to grams
Answer:
Mass = 5.24 g
Explanation:
Given data:
Number of atoms of Ca = 7.9×10²² atoms
Mass of Ca = ?
Solution:
First of all we will calculate the number of moles by using Avogadro number.
1 mole contain 6.022×10²³ atoms
7.9×10²² atoms × 1 mol /6.022×10²³ atoms
1.31 ×10⁻¹ mol
0.131 mol
Mass of Ca:
Mass = number of moles × molar mass
Mass = 0.131 mol × 40 g/mol
Mass = 5.24 g
The air pressure inside a submarine is 1.26 atm. What would be the psi of the submarine?
Answer:18.5
Explanation:
A man has more kinetic energy than a woman.
True or False
Answer:
False
Explanation:
How much sodium chloride is produced from the synthesis of 100g of sodium and an excess of chlorine gas? 2Na + Cl2= 2NaCl
Answer:
254.35 g of NaCl.
Explanation:
We'll begin by writing the balanced equation for the reaction between sodium (Na) and chlorine (Cl₂) to produce sodium chloride (NaCl). This is illustrated below:
2Na + Cl₂ —> 2NaCl
Next, we shall determine the mass of Na that reacted and the mass of NaCl produced from the balanced equation. This can be obtained as follow:
Molar mass of Na = 23 g/mol
Mass of Na from the balanced equation = 2 × 23 = 46 d
Molar mass of NaCl = 23 + 35.5
= 58.5 g/mol
Mass of NaCl from the balanced equation = 2 × 58.5 = 117 g
SUMMARY:
From the balanced equation above,
46 g of Na reacted to produce 117 g of NaCl.
Finally, we shall determine the mass of NaCl produced by the reaction of 100 g of Na. This can be obtained as follow:
From the balanced equation above,
46 g of Na reacted to produce 117 g of NaCl.
Therefore, 100 g of Na will react to produce = (100 × 117)/46 = 254.35 g of NaCl.
Thus, 254.35 g of NaCl were obtained from the reaction.
Soney listed two structures found in seedless vascular plants. 1 - stems 2 - roots Which structures in nonvascular plants are similar to these two structures?
A) 1 - leaves, 2 - spores
B) 1 - stalks, 2 - rhizoids
C) 1 - rhizoids, 2 - stalks
D) 1 - spores, 2 - leaves
Answer:
The answer is B
Explanation:
Which best replaces the question mark?
Answer:Waves.sry if this is wrong.
Explanation:
The ability of carbon to attract electrons is
Answer:
Electronegativity is the relative ability of an atom involved in covalent bonding to pull electrons toward itself.
Answer:
Electronegativity
Explanation:
Electronegativity is the ability of an atom to attract electron.
Electronegativity increases as it get closer to fluorine since fluorine is the most electronegative element.
what two forms of energy are given off by a burning candle
Answer:
thermal and light energy
Explanation:
it's both thermal and light energy cause the candle give off light and if you get close enough you can feel the heat of it,also known as thermal
State two things that happen to wave when it passes from one material into another material
Answer:Radio waves move through the air at the same speed as visible light, Sound waves are mechanical waves all sound waves regardless of there spee or frequency.
Explanation: I got my answer from stemscopes.
If a 12-volt battery produces a current of 20 amps, what is the resistance?
Answer:
0.6 Ω
Explanation:
From the question given above, the following data were obtained:
Voltage (V) = 12 V
Current (I) = 20 A
Resistance (R) =?
From Ohm's law,
V = IR
Where:
V => is the voltage
I => is the current
R => R is the resistance
With the above formula, we can obtain the resistance as follow:
Voltage (V) = 12 V
Current (I) = 20 A
Resistance (R) =?
V = IR
12 = 20 × R
Divide both side by 20
R = 12 / 20
R = 0.6 Ω
Thus the resistance is 0.6 Ω
Used in ur own words, How are elements,compounds,and mixtures different?
Explanation:
Elements are pure substances made up of only atoms that all have the same number of protons in their nuclei. Compounds are molecules held together by covalent bonds. Ionic compounds are held together by ionic bonds. Intermetallic compounds are held together by metallic bonds. Certain complexes are held together by coordinate covalent bonds. A mixture is a combination of two or more elements or compounds which haven't bonded yet, so each mixture is it's own.
Hope this helps!
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How does an electrolytic cell work?
OA. Two electrolyte solutions react to cause electrons to flow.
O B. A voltage applied across two electrodes causes electrons to flow.
OC. A salt bridge connecting two electrodes generates electrons.
O D. A spontaneous redox reaction at two electrodes causes electrons
to flow.
Answer: a voltage applied across two electrodes causes electrons to flow. (b)
Explanation:
A voltage applied across two electrodes causes electrons to flow. Hence, option B is correct.
What is an electrolytic cell?An electrolytic cell converts electrical energy into chemical energy or vice versa.
Electrolytic cells use electrical energy to initiate an oxidation-reduction reaction that would not spontaneously occur otherwise.
The anode is the side of the oxidation reaction and is positively charged.
Electrolytic cells are used to electroplate metals, recharge batteries, and separate compounds like water.
Hence, option B is correct.
Learn more about electrolytic cells here:
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A crest of a wave with an amplitude of 3 meters intersects with another trough of a wave with an amplitude of 2 meters. What is the resulting amplitude?
3 meters
2 meters
6 meters
1 meter
Answer:
A 3 meters
Explanation:
A crest of the wave is the highest peak in the wave that shows the maximum displacement value. The intersection of the 3-meter and 2-meter waves results in amplitude of 1 meter. Thus, option D is correct.
What is amplitude?The amplitude of the wave is the measurement of the wave from the still position towards the crest or the trough of the wave. It is estimated in meters.
The elevation of the wave is at 3, and the depression is at 2 meters when intersected, which results in an amplitude causing destructive interference. As 3 m is above the baseline and 2 m is below the baseline the resulting amplitude will be, 3 - 2 = 1 m.
Therefore, the resulting amplitude is 1 meter.
Learn more about amplitude here:
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the melting point of gallium metal is 29.76°C If a piece of gallium is sliced into three parts, the melting point will be:
A. higher than 29.76°C
B. 29.76°C
C. lower than 29.76°C
Answer:
B. 29.76°C
Explanation:
The melting point of each parts will be 29.76°C.
Melting point is the temperature at which a substance changes state from solid to liquid.
This quantity is an intensive property of matter and it does not depend on the quantity of matter therein.
All given mass of gallium will melt at 29.76°CWith the mass present and the heat supplied, it can take different time but once the temperature of 29.76°C is attained, gallium will begin to melt.What happens to the particles in dry ice when it subimes
Answer:
The particles in dry ice overcomes the force of attraction between them to change directly to gaseous state.
Explanation:
Matter exists in three states- solid, liquid and gas. When heated, solid changes to liquid and then gas. However, upon condensation, gas changes to liquid and then to solid. Some solids when heated change directly to vapour without an intermediate liquid state, such vapour will also condense to solid without going through the liquid state. Example includes: ammonium chloride, iodine crystals and sulphur. These solids undergo SUBLIMATION.
Dry ice which is also known as solid frozen carbon dioxide can undergo sublimation when subjected to -78°C. What actually happens to the particles ( molecules) of the frozen carbon dioxide is the existence of weak intermolecular forces between the molecules. Since the molecules are very weakly attracted to each other, frozen carbon dioxide molecules very readily go from the solid state to the gas state at low temperatures.