Answer:
An increased population in younger women. Studies show that younger women may have more children.
I can't put too much complex information or brainly will delete this.
I hope this answers your question! Thanks, and have a wonderful day.
In an ecosystem with an increase in population of young women there can be an increase in the number of births.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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A student correctly determines that 17.1 grams of sucrose are needed to make 50 ml of a 1m sucrose solution. when making the solution in the lab, the student measured 50ml of solution and then adds the 17.1 grams of sucrose to the beaker. the student’s resulting solution was not 1m as intended. after the student mixed the solution, the resulting solution was measured at 62ml.
The initial and final molarity are 0.860 molars and 0.694 molars, respectively.
How to calculate molarity in a solution
In chemistry, molarity ([tex]M[/tex]), in molars, is described by the following expression:
[tex]M = \frac{n}{V}[/tex] (1)
Where:
[tex]n[/tex] - Molar amount of the solute, in moles[tex]V[/tex] - Volume of the solution, in litersThe molar amount of the solute is determined by this formula:
[tex]n = \frac{m}{M}[/tex] (2)
Where:
[tex]m[/tex] - Mass of the solute, in grams[tex]M[/tex] - Molar mass, in moles per gramsIf we know that [tex]m = 17.1\,g[/tex], [tex]M = 397.64\,\frac{g}{mol}[/tex], [tex]V_{1} = 0.050\,L[/tex] and [tex]V_{2} = 0.062\,L[/tex], then the initial and final molarities are, respectively:
[tex]n = \frac{17.1\,g}{397.64\,\frac{g}{mol} }[/tex]
[tex]n = 0.043\,mol[/tex]
Initial molarity[tex]M_{1} = \frac{0.043\,mol}{0.050\,L}[/tex]
[tex]M_{1} = 0.860\,M[/tex]
Final molarity[tex]M_{2} = \frac{0.043\,mol}{0.062\,L}[/tex]
[tex]M_{2} = 0.694\,M[/tex]
The initial and final molarity are 0.860 molars and 0.694 molars, respectively. [tex]\blacksquare[/tex]
RemarkThe statement is incomplete, complete form is described below:
A student correctly determines that 17.1 grams of sucrose are needed to make 50 ml of a 1m sucrose solution. when making the solution in the lab, the student measured 50ml of solution and then adds the 17.1 grams of sucrose to the beaker. the student’s resulting solution was not 1m as intended. after the student mixed the solution, the resulting solution was measured at 62ml. What are the initial and final concentrations of the solution?
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When the volume of a gas is changed from __ mL to 852 mL, the temperature will change from 315 degrees C to 452 degrees C
The volume of a gas is changed from 691 mL to 852 mL, the temperature will change from 315 °C to 452°C.
WHAT IS CHARLES LAW:Charles law states that the volume of a given gas is directly proportional to the temperature given that the pressure remains constant.
The charles law equation is as follows:
V1/T1 = V2/T2
V1/588 = 852/725
588 × 852 = 725V1
500,976 = 725V1
V1 = 500976/725
V1 = 691mL
Therefore, the volume of a gas is changed from 691 mL to 852 mL, the temperature will change from 315 °C to 452°C.
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state the conditions essential for an isothermal process to occur.
thankyou #)
[tex] \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ [/tex]
Answer:
The container should be perfectly conducting to the surroundings. ii) The process must be carried out very slowly so that there is sufficient time for exchange of heat with the surroundings so that temperature remains constant.
The conditions essential for an isothermal process to occur is:
The system must be properly conducive to the surroundingsThe procedure must be carried out slowly to allow heat exchange with the surroundings.This is further explained below.
What is an isothermal process?Generally, An isothermal process is simply defined as a sort of thermodynamic process where a system's temperature T remains constant.
In conclusion, The equation for the isothermal process is
dT=0
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The reaction
C(s)+2H2(g)⇌CH4(g)
has p=0.263 at 1000. K. Calculate the total pressure at equilibrium when 4.553 g of H2 and 22.14 g of C(s) are placed in an 8.89 L flask and heated to 1000. K.
Ptotal=______ atm
From he calculations, we can see that the total pressure at equilibrium is 21 atm.
What is equilibrium constant?The term equilibrium constant commonly describes the constant that that shows the extent of conversion of reactants to products.
We have to find the pressure of each gas as follows;
For H2
P = nRT/V = 4.553 /2 × 0.082 × 1000/8.89 L = 21 atm
Using the ICE table;
C(s) + 2H2(g) ⇌ CH4(g)
I 21 atm 0
C -x +x
E 21 - x x
0.263= x/(21 - x )^2
0.263(21 - x )^2 = x
38 - 11x - 0.263x^2 = x
0.263x^2 + 12x - 38 = 0
x=2.97 atm
At equilibrium, we have;
(21 - 2.97) + 2.97 = 21 atm
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Adding vinegar to baking soda will cause a chemical reaction. Which of these will speed up the reaction?
A. Use a block of baking soda instead of powdered baking soda.
B. Add warm vinegar instead of cold vinegar to the baking soda.
C. Mix the vinegar and soda in a small jar instead of a large one.
D. Add cold water to the vinegar before adding the baking soda.
A chemist weighed out 8.72 g of tin. Calculate the number of moles of tin she weighed out.
Be sure your answer has the correct number of significant digits.
What trends do you see in these calculations? How does the percent increase that occurred from 2000 to 2010 compare with the projected increase from 2020 to 2030
Answer:
The early 2000s had an astronomical rise in wind energy. The largest rise, by far, was between 2000 and 2010, but it also increased by 51% in just three years between 2010 and 2013. Beyond 2020, wind energy is still expected to steadily increase, but not at the astronomical rate of the early 2000s.
Explanation:
Answer:
Wind energy witnessed a meteoric surge in the early 2000s. By far the most significant increase occurred between 2000 and 2010, but it also climbed by 51% in just three years from 2010 and 2013. Wind energy is predicted to continue to grow through 2020, although not at the same astronomical rate as in the early 2000s.
Explanation:
plato (not example answer)
Hey!!! Chemistry Question about MOLES... Please help...
When ethane (C2H6) burns, it produces carbon dioxide and water:
2C₂ H₆ (g) + 7O₂ (g) → 4CO₂ (g) + 6H₂ O (1)
How many moles of water will be produced when 16 moles of ethane are burned?
Answer:
48 moles of water
Explanation:
2C2H6 + 7O2 --> 4CO2 + 6H2O
We want to find the number of moles of water produced if 16 moles of ethane (C2H6) are burned.
We can use dimensional analysis to find the answer.
Needed conversions: We need the mole ratio of ethane to water in the chemical equation which would be 2 to 6. So for every 2 moles of ethane that are burned 6 moles of water is produced.
Using this ratio we can create a table:
[tex]\frac{16mol(C_2H_6)}{} *\frac{6mol(H_2O)}{2mol(C_2H_6)}[/tex]
the mol (C2H6) cancel out and we get
[tex]\frac{16}{} *\frac{6}{2mol(C_2H_6)}[/tex]
we then multiply
16 * 6/2molC2H6 = 48molH2O
So if 16 moles of ethane is burned 48 moles of water is produced
will mark as brainliest if correct for both questions / chemistry
Answer:
#1 : C
Explanation:
what is the mass number of chlorine
Answer:
35.453 u
Explanation:
Hope this helps
1)what advice would you give a friend or family member about managing their own waste?
2) Explain what you think it will take to restore and regenerate our world?
dont trow it away
Explanation:
if you dont want it for later give it to someone
1.
• Reduce your food waste
According to the U.S. Environmental Protection Agency (EPA), the largest component of municipal solid waste sent to landfills is food. Therefore, the most effective way to reduce your household waste is to reduce and divert food scraps! Get some tips on reducing food waste that can save you money. Planning is key; make sure to shop with a list, take inventory of your fridge, use your leftovers, and store food properly. Additionally, certain food scraps are edible! Click here to learn more about cooking with food scraps.
After making efforts to reduce food waste, any residual food scraps can be diverted in several ways! You can feed food scraps to animals like chickens (although we discourage feeding food scraps to pigs), start a compost pile in your backyard, compost indoors with a worm bin, contact your trash and recycling hauler about curbside food scrap collection, or bring food scraps to your town’s drop-off. Additionally, we accept food scraps from residents for free at the District Transfer Station. Call us at 388-2333 for more info on the disposal of food scraps.
• Paper or plastic? Neither!
Use reusable bags instead for all of your shopping needs. Don’t just limit this to grocery shopping—bring reusable bags when shopping for clothes, books, household goods, etc. You can also use reusable produce bags to purchase loose food items (such as fruits and veggies) from the grocery store.
If you find yourself forgetting your bags at home, try storing bags in your car. Or, purchase folding reusable bags and keep them in your purse, on your keychain, or in your pocket at all times. For a more extreme solution, you can force yourself to return home for your bags if you catch yourself forgetting, or make yourself carry your purchases out of the store without a bag. Chances are, you will remember this unpleasant experience and be significantly less likely to forget your bags next time!
• Say no to bottled water
Instead, carry a reusable water bottle. It is a myth that bottled water is healthier than tap water—although both tap and bottled water are federally regulated in the U.S., tap water has stricter quality and health standards than bottled water. Benefit the environment, your health, and your finances by embracing the tap and going reusable!
#2
Simple Things You Can Do to Help Protect the Earth
• Reduce, reuse, and recycle. Cut down on what you throw away. Follow the three "R's" to conserve natural resources and landfill space.
• Volunteer. Volunteer for cleanups in your community. You can get involved in protecting your watershed, too.
• Educate. When you further your own education, you can help others understand the importance and value of our natural resources.
• Conserve water. The less water you use, the less runoff and wastewater that eventually end up in the ocean.
What does how much you weigh depend upon?
how many calories your body burns each day
both a and b
neither a nor b
how many calories you eat each day
Answer:
1. It depends on the object's mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth.
2. The average person burns around 1800 calories a day doing absolutely nothing. According to the Healthy Eating Guide, sitting burns an estimated 75 calories per hour.
3. (Adults). The recommended calorie intake for adult women ranges from 1,600 calories per day to 2,400 calories per day, according to the 2020-2025 Dietary Guidelines for Americans. 2 For men, the amount is slightly higher, ranging from 2,200 to 3,200 calories per day.
Explanation:
mark me as brainliest
Answer:
both of these
Explanation:
i just did the test
Given the empirical formula C2H3O, what is the molecular formula that has a mass of 214.8g?
Given the empirical formula, the molecular formula that has a mass of 214.8g is C₁₀H₁₅O₅
Empirical & ,molecular formulaeFrom the question, we are to determine the molecular formula
From
Molecular formula = (Empirical formula)n
Where
[tex]n = \frac{Molecular\ formula\ mass}{Empirical\ formula\ mass}[/tex]
From the given information,
Empirical formula is C₂H₃O
Therefore, Empirical formula mass = (12×2) + (1×3) + (16)
Empirical formula mass = 24 + 3 + 16
Empirical formula mass = 40 g
Then,
[tex]n = \frac{214.8}{40}[/tex]
n = 5.37
n ≅ 5
Therefore,
Molecular formula = (C₂H₃O)₅
Molecular formula = C₁₀H₁₅O₅
Hence, given the empirical formula, the molecular formula that has a mass of 214.8g is C₁₀H₁₅O₅
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Did you answer question 2 ?
Best definition of chemistry
Answer:
its a branch of science which deals with chemical and atomaic molecules
Answer:
Chemistry is the study of matter, it properties and the changes that matter undergoes.
classify N a + as cation, anion or neither
The federal government took Microsoft to court for being a monopoly. Microsoft stated that the merging of its Microsoft Windows operating
system and Internet Explorer (IE) was the result of innovation and competition, that the two were now the same product and were inextricably
linked together, and that consumers were now getting all the benefits of IE for free. Those who opposed Microsoft's position countered that
the browser was still a distinct and separate product that did not need to be tied to the operating system, since a separate version of IE was
available for Apple's Mac OS.
Research this event in a bit more detail, and write a 1-2 paragraph response discussing whether you agree with Microsoft or its opponents
Microsoft was right in that IE was free
also having IE didn't prevent a person from using other browsers such as Netscape & Safari
Microsoft was forced to buy huge amounts of Apple shares took keep the government happy
Microsoft was wrong in that if you uninstalled IE it did lead to problems with Windows
Microsoft was wrong in that browser business plans had it so that people got to use browsers free but companies had to pay so if IE was free for companies too then yes Microsoft had an unfair advantage that they were already in a product that companies already used
when users bought stuff through the browser IE it was safer
The case between the federal government and Microsoft regarding its alleged monopoly and the integration of Microsoft Windows and Internet Explorer (IE) sparked a debate about whether the two products were inextricably linked or separate entities.
Microsoft argued that the merging of Windows and IE was a result of innovation and competition, claiming that they were now the same product. They stated that consumers were benefiting from having IE included with Windows at no extra cost. Opponents of Microsoft's position countered that IE was still a distinct and separate product that didn't need to be tied to the operating system. They pointed out that a separate version of IE was available for Apple's Mac OS.
In my opinion, I tend to agree more with Microsoft's argument. The integration of IE into Windows allowed for a more seamless browsing experience for users and promoted competition in the market. By bundling IE with Windows, Microsoft was able to offer additional value to consumers without requiring them to pay extra or download a separate browser. However, it is important to consider the potential impact on competition and innovation that could arise from such integration.
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The wavenumber of the incident radiation in a Raman spectrometer is 20487 cm−1. What is the wavenumber of the scattered Stokes radiation for the J = 2 ← 0 transition of the molecule N2, being the two N atoms the 14 isotope?
The wavenumber of the scattered stokes is 20475.0108cm-1
Data;
wavelength = 20487 cm-1wavenumber = ?Δv = ?Rotational Quantum Numberlet's make
J' = excited rotational quantum number
J" = ground rotational quantum number
B = rotational constant
for
J = 2 -- 0
J' = 2, J" = 0
[tex]\delta V = B * 2*3 - B*0(0+1)\\\delta V = 6B[/tex]
The rotational constant B for N2 = 1.9982 cm-1
[tex]\delta V = 6 * 1.9982 = 11.9892 cm^-^1[/tex]
The wave number of the scattered stokes radiation is given by
[tex]\delta V_s = V_e_x - \delta V[/tex]
substituting all values across
[tex]\delta V_s = 20487 - 11.9892\\\delta V_s = 20475.0108 cm^-^1[/tex]
The wavenumber of the scattered stokes is 20475.0108cm-1
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Help me out ? I'm not sure of my answer.
Answer: It is possible. Chlorine reacts with potassium bromide to form potassium chloride and bromine.
what is nuclear weapons
Suggest why this experimental value is less than the standard enthalpy change of combustion of hexane found in a data book
The standard enthalpy change of combustion of hexane is greater than the experimental value because the combustion of hydrocarbons is not always complete.
What is enthalpy of combustion?The term standard enthalpy of combustion is used to described the heat evolved upon burning one mole of a substance in oxygen under standard conditions.
We must recall that the combustion of hydrocarbons is not always complete as such, the standard enthalpy change of combustion of hexane is greater than the experimental value.
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Why do oxygen molecules move more slowly than hydrogen molecules at the same temperature?
Answer:The oxygen molecules are more loaded and heavier which weighs down and the molecules and don't allow the same amount of moving ability as the hydrogen moles have.
Explanation:
A sample of nitrogen (N2) has 1.70 moles and occupies 3.8 Liters. What would be the volume of the sample with 2.60 moles?
Answer:
a) What volume will it occupy with 2.60 moles?
V2 = V1 x n2 / n1
V2 = 3.80 x 2.60 / 1.70 = 5.81 L
Answer: V2 = 5.81 L
b) How many moles are in a sample that occupies 1.45 L?
n2 = n1 x V2 / V1 = 1.70 x 1.45 / 3.80 = 0.65 mol
Answer: n2 = 0.65 mol
Explanation:
The volume of the sample that has 2.60 moles and occupies is 5.81 l.
What is Volume?Volume is the space occupied by a three-dimensional object.
The moles of the sample m1 is 1.70
The volume V1 is 3.8 l
The moles m2 is 2.60
V2 = ?
[tex]V2 = V1 \times \dfrac{n_2}{n_1} \\\\\\V2 = 3.80 \times \dfrac{2.60}{1.70} = 5.81 \;l[/tex]
Thus, the volume of the sample that has 2.60 moles and occupies is 5.81 l.
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7. Lli(s) + N₂(g) → 2 Liz Ncs)
How
many
moles of Lithium
are needed to
produce 1.60m of Liz N ?
a-1.80 b- 4.80 c-1.60 d-3.20
The number of mole of lithium, Li needed for the reaction is 3.2 moles (Option D)
Balanced equation4Li + N₂(g) → 2Li₂N
From the balanced equation above,
2 moles of Li₂N were obtained from 4 moles of Li
How to determine the mole of lithium neededFrom the balanced equation above,
2 moles of Li₂N were obtained from 4 moles of Li
Therefore,
1.6 moles of Li₂N will be obtained from = (1.6 × 4) / 2 = 3.2 moles of Li
Thus, 3.2 moles of Li are needed for the reaction
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Purchasing the correctly sized BMX bike is based on the height of the rider. In order to fit a customer, the salesman can use the equation b=0.29h+1.35 where b is the size of the BMX bike frame in inches and h is the height of the rider in inches.
1. As a rider increases one inch in height, the bike frame increases 0.29 inches.
2. The height of the rider gets multiplied by 0.29.
3. The bike frame increases 0.29 inches for every 1.35 inches of the rider's height.
4. As a rider's height increases 1.35 inches, the bike frame increases one inch.
Question 11 of 25
What does the half-life of a radioisotope correspond to?
A. The length of time for a radioactive material to completely decay to a stable form
B. The length of time it takes for one nucleus to undergo a nuclear reaction
C. The length of time required for half of a sample of radioactive material to decay
D. The length of time a material is stable before the nucleus becomes radioactive b
Answer:
C- THE LENGTH OF TIME REQUIRED FOR HALF OF A SAMPLE OF RADIOACTIVE MATERIAL TO DECAY
How many joules of heat are needed to raise the temperature of 18.3 g of aluminum from
25°C to 70°C, if the specific heat of aluminum is 0.90 J/gºC?
Answer:
The key to this problem lies with aluminium's specific heat, which as you know tells you how much heat is needed in order to increase the temperature of 1 g of a given substance by 1∘C.
In your case, aluminium is said to have a specific heat of 0.90Jg∘C.
1. Which of the following DOES NOT belong to the group? A Aluminum C Copper B. Plastic D. Iron
Answer:
C
Explanation:
How much oil has been removed and how much is left?
Answer: 50(removed) 210(still in)
Explanation: just count it
2. A gas that occupies a volume of 6.75 L at 89.0 atm will occupy what volume at 68.55 mm Hg if the temperature remains constant?
First convert pressure to atm
1atm=760mm hg68.55 mm Hg= 0.09atmNow
V1=6.75LV2=?P1=89atmP2=0.09atmApply Boyle's law
[tex]\\ \rm\Rrightarrow P1V1=P2V2[/tex]
[tex]\\ \rm\Rrightarrow 89(6.75)=0.09V2[/tex]
[tex]\\ \rm\Rrightarrow 600.75=0.09V2[/tex]
[tex]\\ \rm\Rrightarrow V2=\dfrac{600.75}{0.09}[/tex]
[tex]\\ \rm\Rrightarrow V2=6675L[/tex]