2Na+S→Na2S

What is the total number of moles of S that react when 4.0 moles of Na were completely consumed?​

Answers

Answer 1

Answer:

2.0 moles S

Explanation:

To find the number of moles of S, you need to convert the moles Na to moles S via the mole-to-mole ratio. This ratio is represented by the coefficients in the balanced equation. Because you wish to find moles S, you want to put this number in the numerator. Because you want to eliminate the moles Na, this number should be in the denominator.

2 Na + 1 S ---> Na₂S

4.0 moles Na             1 mole S
----------------------  x  ---------------------  =  2.0 moles S
                                 2 moles Na


Related Questions

The energy produced by the snack in an experiment is calculated to be 41,800 J/g. What is the energy of the snack in Calories/
gram?

snack energy = [?] Cal/g or kcal/g

remember there are 4.18J per 1 calorie

Answers

The energy of the snack in calories per gram is 9983.3 Calories/gram.

What is the energy of a snack?

The energy that is contained in a snack is obtained from a calorimeter when the snack is burnt in a calorimeter. The mass of the snack that is burnt is measured in terms of energy output of the calorimeter.

If  1 calorie = 4.18J

x calorie = 41,800 J

x = 41,800 J * 1 calorie/4.18J

x = 9983.3 Calories/gram

Learn ore about energy in food:https://brainly.com/question/9602807

#SPJ1

Why did mendeleev leave blank spaces in his version of the periodic table?.

Answers

Answer: He left blank spaces for undiscovered elements to be added to the table.

Explanation:

Answer:

Mendeleev left blank spaces in his version of the periodic table because he left the gaps to place elements not known at the time

If 0.507J of heat leads to a 0.007 degree C change in water, what mass is present?

Answers

Answer:

17.25g

Explanation:

From our question, we have been asked to find the mass of water present.

The formula for finding specific heat is given by;

Q = mCpT

We have, Q = 0.507 J, ∆T = 0.007° C and we know that Cp of water is 4.2 J/g°C

Rearrange the formula making m the subject.

Which is given by;

m = (Q)/(Cp∆T)

Substituting for the known values

[tex]m \: = \frac{0.507}{4.2 \times 0.007}[/tex]

= 17.24489 g

= 17.25g

Answer:

17.32 gm

Explanation:

Specific heat of water is 4.182 J / g- c

4.182  J /g-c   =  .507/ ( .007 * gm)

solve for gm = 17.32  gm

Consider the compound calcium nitrate, Ca(NO3)2. Which statements are true about this compound? Check all that apply. There are two atoms of oxygen. There are six atoms of oxygen. There are two nitrogen atoms. There are two calcium atoms.

Answers

Calcium nitrate is made up of 6 oxygen atoms, 2 nitrogen atoms and one calcium atom.

Ca(NO₃)₂

Calcium nitrate is a compound consisting of calcium, nitrogen and oxygen compoundsIt is an inorganic compoundIt is water-absorbent and absorbs moisture from airCalcium nitrate has two forms, hydrous and anhydrousBoth forms are colourless and odourlessThe reaction to form Calcium nitrate is Ca + 2NO₃ -----> Ca(NO₃)₂

The number of oxygen atoms is: 2x3 = 6The number of nitrogen atoms is: 2x1= 1There is 1 calcium atom

Thus, calcium nitrate is made up of 6 oxygen atoms, 2 nitrogen atoms and one calcium atom.

Learn more about calcium nitrate reactions here:

https://brainly.com/question/17171430

#SPJ10

Answer:

B)There are six atoms of oxygen.

C)There are two nitrogen atoms.

Explanation:

edge 2023

what is the approximate partial pressure of oxygen at 1500 m?

Answers

The approximate partial pressure of oxygen at 1500 m is 0.18 atm.

Pressure of the air

From barometric pressure table;

1500 m = 85 kPa

1 kPa = 0.0099 atm

85 kPa = ?

= 0.84 atm

Oxygen percentage in air  = 21%

Partial pressure of oxygen in air

P = 0.21 x P(total)

P = 0.21 x 0.84 atm

P = 0.18 atm

Thus, the approximate partial pressure of oxygen at 1500 m is 0.18 atm.

Learn more about partial pressure here: https://brainly.com/question/19813237

#SPJ11

q5:- Some green food colouring was carefully added to the bottom of a beaker of water using a syringe. The beaker was then covered and left untouched for several days.

Describe what would you observe after:-
a)
i) a few hours

ii) several days
b) explain your answer to question 5a using ideas of the kinetic particle theory.
c) state the physical process that takes place in this experiment.

Answers

The molecules of the green food coloring would disperse throughout the water.

Diffusion

i) In a few hours, the molecules of the green food coloring would have started dispersing throughout the water from the region of higher concentration to the region of lower concentration.

ii) In several days, the molecules would have uniformly dispersed through the water.

b) According to the kinetic theory of particles, matters, irrespective of their nature, are made up of small molecules that are in constant random motion. The direction and pace of movement depend on the energy they possess as well as the kind of relationship that exists between the small molecules.

c)The process that takes place in the experiment is known as diffusion.

More on diffusion can be found here:

#SPJ1

Help me please, is for my finals!!

Answers

Answer: A

Explanation:

9 protons correspond to fluorine.

The first model shows 9 electrons, so the charge is neutral and is thus a fluorine atom.The second model shows 10 electrons, so the charge is -1, meaning is a fluoride ion.

ls zinc qnd hydrogen chloride combining into sinc chloride and hydrogen gas a chemical or physical change?​

Answers

Answer:

chemical because it turned into a new compound

Explanation:

is zinc and hydrogen chloride combining into zinc chloride and hydrogen gas a chemical or physical change?​

physical change is like  boiling, melting, freezing, and shredding

but its still the same compound

chemical is like it turns into something else like a new compound

Zn + 2HCl = ZnCl2 + H2(g)

Metal + Acid → Hydrogen + Acid Anion

new compound forms in this reaction

quora

Les McLean

toppr

How many grams of
diphosphorus trioxide, P2O3, are
required to react completely with
2.25 moles H₂O?

P2O3 + 3H₂O → 2H3PO3

[?] g P₂03

Answers

From the coefficients of the equation, we know that for every 3 moles of water consumed, 1 mole of diphosphorus trioxide is consumed.

This means we need to find the mass of 0.75 moles of diphosphorus trioxide.

The atomic mass of phosphorous is 30.973761998 g/mol.The atomic mass of oxygen is 15.9994 g/mol.

So, the formula mass of diphosphorus trioxide is:

2(30.973761998)+3(15.9994)=109.945723996 g/mol.

Thus, 0.75 moles have a mass of:

0.75(109.945723996), which is about 82.5 g (to 3 sf)
the answer is 82.5 g P2O3

you can use stoichiometry to solve for this problem. you’re given 2.25 mol H2O and when you look at your chemical reaction, you can see there’s 3 moles of H2O (look at the coefficients) and do the mole ratio. so in the chemical reaction, there’s 1 mol P2O3 and 3 mol H2O. you get your moles with that and since you need it in grams, you need to convert it using the P2O3 molar mass.

The sentences below are things people might say if they were planning to invest or not planning to invest Sort them into the correct categories . am thinking about buying stocks Planning to Invest Not Planning to Invest don't know much about investing can't afford to buy stocks don't really like to take risks need a way to manage my money want to save money for my future

Answers

Investing   :

"I'm considering investing in equities."

"I need a system for handling my finances."

"I need to put money away for the future."

No Investment :

"My knowledge of investment is limited."

"I am unable to purchase stocks."

"I don't particularly enjoy taking chances."

Explanation:

These are accurate because I recently completed the course that taught me these things.

Learn ore about investing and no investment from here :

https://brainly.com/question/4459036?referrer=searchResults

#SPJ10

PLEASE HELP FAST! How many grams of NO are formed if 8.3 g of ammonia react with 11.8 g of oxygen? The reaction is 4NH3 + 5O2 --> 4NO + 6H2O.

Options:
A. 8.85 g NO
B. 12.6 g NO
C. 14.6 g NO
D. 9.3 g NO

Answers

The mass of NO produced is 9.3 g; option D.

What mass of NO is produced from the reaction?

The mass of nitrogen (ii) oxide, NO, produced from the reaction is determined from the mole ratio of the reaction.

The mole ratio of ammonia to oxygen from the equation of the reaction is 4 : 5.

moles of oxygen = 11.8/32 = 0.368

moles of ammonia = 8.3/17 = 0.488

Oxygen is the limiting reactant.

Mass of NO produced = 0.369 * 4/5 * 30 = 9.4 g NO

In conclusion, approximately 9.3 g of NO is produced.

Learn more mole ratio at: https://brainly.com/question/19099163

#SPJ1

What volume of a 3.95 M
potassium chloride solution would
be needed to make 325 mL of a
2.76 M solution by dilution?
[?] mL of 3.95 M KCl

Answers

256 mL of 3.95 M KCI is needed

Explain the large variation in boiling temperatures, given the small range in Me values.

Answers

Answer:

32.0 is the answer which is divide able to 65 or -85

C3 H8=H2O2+CO2 chemically balanced in chemistry ​

Answers

[tex]C_{3} H_{8} +5O_{2}[/tex]→[tex]3CO_{2} +4H_{2} O[/tex]

The given reaction is of complete combustion of propane in presence of oxygen.

Molecular formula of propane gas= [tex]C_{3} H_{8}[/tex]

Combustion is a oxidation of a organic molecule into carbon dioxide and water .

Here oxygen serves as a oxidizing agent and oxidizes propane into carbo dioxide and water molecule.

The unbalanced reaction can be given as:

[tex]C_{3} H_{8} +O_{2}[/tex] →[tex]CO_{2} +H_{2} O[/tex]

Here, 3 carbons are there in propane.

so, 3 carbon dioxide molecules are formed to balance the reaction.

So, when 3 carbon dioxides are formed 3 oxygen molecules also needed.

Due to presence of 8 hydrogen in propane 4 water molecules forms , which contains 4 O means 2 oxygen molecules .

There for, total 5 molecules of oxygen are needed to balance the equation.

The final balanced equation can be given as..

[tex]C_{3} H_{8} +5O_{2}[/tex]→[tex]3CO_{2} +4H_{2} O[/tex]

Learn more about combustion here...

https://brainly.com/question/23992512

#SPJ10

What is surface tension? Describe how surface tension in water is useful for plants and animals.
This is not multiple choice, I need help please :')

Answers

It is a tension created by the attraction of molecules to the surface by the molecules in a bulk of a solution.

The attraction force present between water molecules is cohesion force.

The phenomenon of surface tension provides two major characteristics to the water:

 It makes the surface molecules to be held together  Responsible for formation of water droplet

Plants take water from soil using it's roots , and water is travelling through the xylene tissues present in a plant , so the cohesion forces present in water helps it to travel to the higher places in plants.

While in case of animals, this attraction forces increases the surface density which helps to insects to walk on to the water surface.

Learn more about surface tension here...

https://brainly.com/question/277477

#SPJ10

if i poured green solution into another test tube and added some copper pieces to the solution will a displacment action occur

Answers

Depends on what kind of ions are present in the green solution

Explanation:

Cr3+, a famous green ion can obviously be displayed by a Cu2+ ion

https://brainly.in/question/47911070

0. 820 mole of hydrogen gas has a volume of 2. 00 l at a certain temperature and pressure. What is the volume of 0. 125 mol of this gas at the same temperature and pressure?

Answers

The volume of 0.125 mole of the gas at the same temperature and pressure 0.30 L

Data obtained from the question Initial mole (n₁) = 0.82 moleInitial volume (V₁) = 2 LNew mole (n₂) = 0.125 molePressure = ConstantTemperature = ConstantNew Volume (V₂) =?

How to determine the new volume

The new volume can be obtained as illustrated below

PV = nRT

Divide both side by P

V = nRT / P

Divide both side by n

V / n = RT / P = Constant

Thus,

V₁ / n₁ = V₂ / n₂

2 / 0.82 = V₂ / 0.125

Cross multiply

0.82 × V₂ = 2 × 0.125

Divide both side by 0.82

V₂ = (2 × 0.125) / 0.82

V₂ = 0.30 L

Learn more about ideal gas equation:

https://brainly.com/question/4147359

#SPJ12

what is chica's email

Answers

how are we (brainly users) supposed to know. unless its just me that doesn't know.

sorry that this isn't really much help. :/

Up late, a tired engineer calculated the molar mass of nitroglycerin (C3H5N3O9) to be 193.7 g/mol, but this incorrect. What is the percent error of this incorrect molar mass

Answers

The atomic mass of carbon is 12.011 g/mol.The atomic mass of hydrogen is 1.00794 g/mol.The atomic mass of nitrogen is 14.0007 g/mol.The atomic mass of oxygen is g/mol.

So, the formula mass of nitroglycerin is[tex]3(12.011)+5(1.00794)+3(14.0007)+9(15.9994)=227.0694 \text{ g/mol}}[/tex]

Therefore, the percent error is

[tex]\frac{193.7-227.0694}{227.0694} \times 100=\boxed{-14.70 \% \text{ (to 4 sf)}}[/tex]

An intravenous solution is noted as having a concentration of glucose equal to 0.312 M. What volume of solution (in mL) is needed to deliver 0.078 moles of glucose to the patient?

Answers

The volume of the solution in mL needed to deliver 0.078 moles of glucose to the patient is 250mL.

How to calculate volume?

The volume of a solution can be calculated by using the following formula:

Molarity = n/V

Where;

n = number of molesV = volume

According to this question, an intravenous solution is noted as having a concentration of glucose equal to 0.312 M. The volume that will be needed is as follows:

volume = 0.078 moles ÷ 0.312M

volume = 0.25L = 250mL

Therefore, the volume of the solution in mL needed to deliver 0.078 moles of glucose to the patient is 250mL.

Learn more about volume at: https://brainly.com/question/20714769

#SPJ1

Identify 3 chemicals that produce a potentially dangerous reaction with hydrochloric acid.

Answers

Alcohol, Carbides, and Chlorates

How many grams of NaCl can be created from 9.8 moles of HCl? (molar mass of NaCl= 58.44g, HCl=36.46g)

Answers

The mass of NaCl that can be produced from 9.8 moles of HCl is 572.712 g

Balanced equation

2Na + 2HCl --> 2NaCl + H₂

From the balanced equation above,

2 moles of HCl reacted to produced 2 moles of NaCl.

Therefore,

9.8 moles of HCl will also react to produce 9.8 moles of NaCl

How to determine the mass of NaClMolar mass of NaCl = 58.44 g/molMole of NaCl = 9.8 molesMass of NaCl =?

Mass = mole × molar mass

Mass of NaCl = 9.8 × 58.44

Mass of NaCl = 572.712 g

Learn more about stoichiometry:

https://brainly.com/question/14735801

#SPJ1

Citric acid (C6H8O7) is an important intermediate in the Krebs cycle and a triprotic acid. What is the normality of a solution made by weighing 128 g of citric acid into a volumetric flask and diluting it to 2 L with water

Answers

Answer:

2.67 N

Explanation:

The normality equation looks like this:

Normality = Molarity (M) x Number of Equivalents

In this formula, the number of equivalents represents how many moles of the acidic species exist in the molecule. In other words, how many hydrogen atoms are in citric acid? This value would be 8 equivalents (as denoted by the subscript).

So, to find the normality, you need to (1) convert grams C₆H₈O₇ to moles (via molar mass), then (2) calculate the molarity (via molarity equation using moles and volume), and then (3) calculate normality (via normality equation using molarity and # of eq.).

(Step 1)

Molar Mass (C₆H₈O₇): 6(12.011 g/mol) + 8(1.008 g/mol) + 7 (15.998 g/mol)

Molar Mass  (C₆H₈O₇): 192.116 g/mol

128 g C₆H₈O₇             1 mole
----------------------  x  ----------------------  =  0.666 moles C₆H₈O₇
                                   192.116 g

(Step 2)

Molarity = moles / volume (L)

Molarity = 0.666 moles C₆H₈O₇ / 2 L H₂O

Molarity = 0.333 M

(Step 3)

C₆H₈O₇  -----> 8 hydrogen atoms

Normality = molarity x number of equivalents

Normality = 0.333 M x 8

Normality = 2.67 N

What mass of reactants are used
during the reaction?
Iron + Sulfur➜ Iron Sulfide
27.50 g
? g
Give your answer to the correct number of
significant figures.
(g) Iron + Sulfur

Answers

Answer:

27.50 g

Explanation:

Unless weight was somehow gained/lost during the reaction, the products should weigh as much as the reactants. Since this isn't specified the mass of the reactants should be equal to the mass of the products.

Which statement illustrates the difference between a chemical reaction and a nuclear reaction?A nuclear reaction releases more energy per gram and appears to violate the law of conservation of mass.A nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.A nuclear reaction releases more energy per gram but does not appear to violate the law of conservation of mass.A nuclear reaction releases less energy per gram but does not appear to violate the law of conservation of mass.

Answers

According to the research, a nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.

What is a nuclear reaction?

It is a procedure that leads to combining and modifying the nuclei of atoms and subatomic particles and appears to violate the law of conservation of mass.

Through this kind of process, the nuclei can be combined or fragmented, absorbing or releasing particles and energy according to each case.

Therefore, we can conclude that according to the research, a nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.

Learn more about nuclear reactions here: https://brainly.com/question/1480032

#SPJ1

In the nebular hypothesis, why did the nebula start to collapse?
1. List two features of the solar system that provide clues about its formation.
2. In the nebular hypothesis, why did the nebula start to collapse?
3. Describe how the sun formed, according to the nebular hypothesis.
4. How does the nebular hypothesis account for the formation of planets?
5. Based on the nebular hypothesis, why are the inner planets denser than the outer planets?

Answers

1.Four major features provide clues:

(1) The Sun, planets, and large moons generally rotate and orbit in a very organized way.

(2) With the exception of Pluto, the planets divide clearly into two groups: terrestrial and jovian.

(3) The solar system contains huge numbers of asteroids and comets.

(4) There are some notable exceptions to these general patterns.

2. Gravity causes the early solar nebula to collapse. The solar nebula flattens and warms at its core as it revolves. Within the spinning disk, planetesimals (early planets) begin to form.

3. Because the center of the revolving disk had the least amount of centripetal force, the majority of the mass from the nebula cloud was drawn to it by gravity. The majority of the material was hydrogen gas that was subjected to extreme pressure, which heated it to a critical point, causing it to fuse with another hydrogen atom, resulting in the formation of helium and the birth of the sun.

4. Nebular Theory: argues that when the Sun formed in the nebula, it created planets, asteroids, and other bodies from a spinning disk of materials known as the accretion disk. Almost all revolve in the same direction on their axes. Venus and Uranus are moving backwards on their axes.

5. In the inner solar nebula, only dense materials could condense. The Jovian planets are really denser than the terrestrial planets. Gravity compresses terrestrial planets to a greater extent, causing them to become denser. The gravity of the Sun drew dense materials into the inner solar system.

The nebular hypothesis has been given to states about the spinning dust cloud. The nebula started collapsing due to the force of gravity. It was formed by the rotation of the planets and celestial bodies.

What is a nebular hypothesis?

The nebular hypothesis was to give the idea about the origin of the solar system based on dust and gases. According to the nebular hypothesis, the nebula started to collapse due to the force of gravity and the shock of the explosion from the Supernova.

The movement and rotation of the planets in orbits, revolutions, and motions suggest that the formation of the nebula along with asteroids and comets is the reason for its formation.

According to the hypothesis, the Sun was formed by the collapse of the heavy helium and hydrogen clouds that resulted in an increase in the temperature at the core and started to increase its temperature even more.

The hypothesis also accounts for the formation of the planets as the formation of the Sun and rotating dust and gases resulted in a rotating solar system that contained planets in it that was first released as planetesimals. The inner planets are denser compared to the outer planets because of the gravitation force.

Learn more about the nebular hypothesis, here:

https://brainly.com/question/1833220

#SPJ2

Which of the following lists describes characteristics of a base?
Bitter taste, low pH, and dissolves metals
Sour taste, high pH, and caustic
Sour taste, low pH, and slippery
Slippery, high pH, and caustic

Answers

Answer:

Option D

Explanation:

Bases are caustic

sour taste refers to acid hence B is wrong

Bases have pH higher than 7 so D is the correct answer

Answer:

Slippery, high pH, and caustic

(last option listed)

Explanation:

sour taste - acid feature

pH < 7 - acid feature [low pH]

dissolves metal - strong acid feature

bitter taste - base feature

slippery feel - base feature

pH > 7 - base feature [high pH]

dissolves metal - strong base feature

[essentially, traits of base can be described as opposites of acid traits]

So, if you combine these traits, "Slippery, high pH, and caustic" best describes characteristics of a base

Plants require nitrogen fixed in compounds to grow. A higher the percentage of nitrogen results in improved plant growth. Which compound should you add to your fertilizer to get the best results.

A. N2F2
B. CON2H4
C. (NH4)2SO4
D. NH4NO3

Answers

Explanation:

c and d. I'm not sure which one is better tho

Nitrogen fixation is the part of the nitrogen cycle where the nitrogen is fixed as nitric oxide. Urea {CON₂H₄} should be added to fertilizer to get the best results. Thus, option B is correct.

What are fertilizers?

Fertilizers are substances that are composed of organic and inorganic compounds that are used to provide nutrients to the plants and crops for growth, development, pest, and insect resistance.

The fertilizers mainly comprise nitrogen, potassium, and phosphorus. Urea {CON₂H₄} has the maximum concentration of nitrogen (46%) and will be the most effective.

The other compound ammonium nitrate {NH₄NO₃} contains 34%, ammonium sulfate { (NH₄)₂SO₄} which comprises 21% of nitrogen by mass, whereas N₂F₂ is not used as a fertilizer.

Therefore, option B. Urea {CON₂H₄} is best to use as fertilizer.

Learn more about fertilizers here:

https://brainly.com/question/13121539

#SPJ2

What is the name of this molecule?

Answers

Answer:

The name of this molecule structure is 1-Butyne

The name of the given molecule according to IUPAC is 1-Butyne. Thus, option C is correct.

What is IUPAC nomenclature?

The IUPAC nomenclature is given as the standard naming technique that is used to name a chemical compound. It is named with the following main rules.

The triple bond compound is an alkyne with the suffix -yne. The development of the name to the given structure is therefore given by counting the number of carbon atoms, and the location of the triple bond.

There are 4 carbon atoms in the structure with the triple bond at carbon 1, therefore the name will be 1-Butyne. Hence, option C is correct.

Learn more about IUPAC nomenclature, here:

https://brainly.com/question/11587934

#SPJ1

Potassium chlorate decomposes according the following BALANCED equation.
2 KClO3 → 2 KCl + 3O2

How many grams of oxygen gas would be produced if 33.0 g of potassium chlorate react?

Answers

Answer:

12.9 g O₂

Explanation:

To find the mass of oxygen gas produced, you need to (1) convert grams KClO₃ to moles KClO₃ (via molar mass from periodic table values), then (2) convert moles KClO₃ to moles O₂ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles O₂ to grams O₂ (via molar mass). It is important to arrange the conversions/ratios in a way that allows for the cancellation of units (the desired unit should be in the numerator). The final answer should have 3 sig figs to match the given value (33.0 g).

Molar Mass (KClO₃): 39.098 g/mol + 35.45 g/mol + 3(15.998 g/mol)

Molar Mass (KClO): 122.542 g/mol

2 KClO₃ ---> 2 KCl + 3 O₂

Molar Mass (O₂): 2(15.998 g/mol)

Molar Mass (O): 31.996 g/mol

33.0 g KClO₃           1 mole                 3 moles O₂            31.996 g
--------------------  x  -------------------  x  -----------------------  x  ------------------  =
                               122.542 g          2 moles KClO₃            1 mole

=  12.9 g O₂

Other Questions
Which of the following can decrease the amount of carbon dioxide in the atmosphere? The frequency of a waveform is found by determining the...Select one:a. number of crests passing a point in a given time.b. distance from a wave's midpoint to its crest.c. distance between two moving low points of the wave. d. distance between a crest and a trough. Describe the inner lining of the stomach. What is the unifying formal structure that vivaldi used in the first movement of the spring concerto 8A181818Question 3 (5 points)You're reviewing patient documentation to learn why a patient is being seen. Whichstep are you probably performing in the coding process?0000Determining the reason for encounterLocating the term in Volume 2Verifying the code in Volume 1Assigning the code to the patient accountQuestion 4 (5 points)Which one of the following choices required providers to submit a diagnosis code tobe reimbursed?BEXpocWHOLondon Bills of MortalityICD-9-CMMedicare Catastrophic Coverage Act of 1988 When planning road development, the road commission estimates the future population using the function represented in the table, where x is the time in years and f(x) is the total population.What is the significance of 160,000 in the function?the maximum population of the citythe expected population in 5 yearsthe initial population at the time of the estimationthe amount of increase in the population in 5 years For the data set 7, 5, 10, 11, 12, the mean, X, is 9. What is the standarddeviation? ) Your school is organising an inter-school Elocution contest for the students of Classes school your IX and X on the topic 'Failure is Success in Progress. Write a notice for informing the students about the event and requesting them to submit their names for [5] participating in the contest. forming him/her of the ) Your school is organising an inter - school Elocution contest for the students of Classes school your IX and X on the topic ' Failure is Success in Progress . Write a notice for informing the students about the event and requesting them to submit their names for [ 5 ] participating in the contest . forming him / her of the Research shows that a person's culture can influence their physical activity. For example, it is common to shop for food in Europe every day by walking to a farmer's market or local bakery. Fresh food contributes to overall health, and so does walking every day.How can a "cultural mindset" benefit a sports team?What about when members of that team have different cultures, races, or abilities? Coffe is a solution of organic substance in water Imagine being an animal in the zoo.what animal.would you like to be? How do you think you'd feel being in a cage and having people visit and watch you? TIMED!! pls What are the zeros of the quadratic function f(x) = 2x^2 + 16x - 9? Suppose that the total cost of flatiron TVs is given by the function TC(Q) = 500Q + 300 dollars, where Q is the number of TVs produced. Find TC(10). A count of patients needing a blood transfusion in the emergency room at a city hospital would best be modelled by whatdistribution?A. geometricB. continuousC. normalD. Poisson The length of a rectangle plus its width is 25cm. The area is 150 square cm. What are thelength and width of the rectangle?Separate the answers with a comma. Why does aids present far less risk to healthcare workers than do hepatitis and tb? one way the Maori culture most differs from the Haida culture is that the Maori culture Identify the statements that correctly describe the ways in which latin american rebellions for independence from spain in the 1810s and 1820s were similar to the north american movement for independence from great britain in the 1770s and 1780s. From 1946 to 1958, the United States used Bikini Atoll, located in the Marshall Islands, as a testing site for which of these purposes?A. Aboriginal settlementsB. nuclear weaponsC. copra factoriesD. South Pole explorations 3. "From a tiny seed, an informative observation maygrow" Let's Do Fun Activity.-a) Put some soil in two jars, sow some seeds (chickpea,kidney beans)in them.b) Keep the jars in sunlight and water them regularly.c) When the plants grow from the seeds then close onejar and observe for 2-3 days.-What do you observe? Write in your notebook?