A student increases the temperature of a 200 cm3 balloon from 60°C to 100 °C.
What will the new volume of the balloon be? Round your answer to one decimal
point.
(to convert Celsius to Kelvin, add 273.15)

Answer?

Answer:

Carbon monoxide is a very important industrial compound. In the form of producer gas or water gas.

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Answer:

The answer is below

Explanation:

A 21.0 g sample of aluminum, which has a specific heat capacity of 0.897 J g '°C ', is dropped into an insulated container containing 200.0 g of water at 25.0 °C and a constant pressure of 1 atm. The initial temperature of the aluminum is 90.1 °C Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has 3 significant digits.

Solution:

The amount of heat lost or gained by a substance is given by the formula:

Q = mcΔT

Where Q is the heat lost or gained, m is the mass of the substance, ΔT is the temperature change.

The law of conservation of energy states that energy cannot be created or destroyed but can be transferred.

Therefore the heat lost by aluminum = heat gained by water

[tex]Q_{lost}=Q_{gained}\\\\m_ac_a\Delta T_a=m_wc_w\Delta T_w\\\\m_a= mass \ of\ aluminium = 21g,c_a=specific\ heat\ capacity\ of\ aluminum\\=0.897\ J/g^oC, \Delta T_a=90.1^oC-x,x=equilibrum\ temperature\\m_w= mass \ of\ water = 200g,c_w=specific\ heat\ capacity\ of\ water\\=4.184\ J/g^oC, \Delta T_w=x-25^oC\\\\ hence:\\\\21*0.897*(90.1-x)=200*4.184*(x-25)\\\\1697.2137-18.837x=836.8x-20920\\\\838.8x+18.387=1697.2137+20920\\\\857.187x=22617.2137\\\\x=26.4^oC[/tex]

Answer:

Scientists hypothesized that WNS, caused by the fungus Pseudogymnoascus destructans, makes bats die by increasing the amount of energy they use during winter hibernation. Bats must carefully ration their energy supply during this time to survive without eating until spring

Explanation:

Answer:

PHOTOSYNTHESIS

Explanation:

Photosynthesis is the process by which plant take in Carbondioxde and water in the present of sunlight in order to produce glucose and oxygen

ok i will so tell me the question

Answer:

What is the main purpose of the curiosity rover ?

Explanation:

Curiosity's mission is to determine whether the Red Planet ever was, or is, habitable to microbial life. The rover, which is about the size of a MINI Cooper, is equipped with 17 cameras and a robotic arm containing a suite of specialized laboratory-like tools and instruments.

Answer:

Curiosity's mission is to determine whether the Red Planet ever was, or is, habitable to microbial life. The rover, which is about the size of a MINI Cooper, is equipped with 17 cameras and a robotic arm containing a suite of specialized laboratory-like tools and instruments.

Answer:

Explanation:

All you need to know is the atomic mass of platinum, and Avogadro's number.

2.00g Pt divided by atomic mass gives you the moles of platinum, and multiplying by avogadro's number (6.022 x 10^23) gives you the number of atoms.

Atomic mass of platinum can be found on any periodic table.

Hope this helped.

12.04 × 10²³ number of platinum atoms are present in 2 grams of platinum.

To calculate the no. of atoms in any substance, we have to multiply the no. of moles of that substance by the Avogadro's no.

Value of Avogadro's no. = 6.022 × 10²³

We can calculate the mole by using the below formula:

n = W / M, where,

n = no. of moles

W = given mass = 2.00g

M = molar mass or atomic mass = 195.09 g/mol

n = 2 / 195.08 = 0.0102 mol

Number of atoms in 2.00g of platinum = 2 × 6.022 × 10²³ = 12.04 × 10²³.

Hence, number of atoms that are present in 2.00g of platinum is 12.04 × 10²³.

To learn more about Avogadro's no., visit below link:
https://brainly.com/question/1581342

Answer:

(Kc)^2

Explanation:

For this reaction 4 A⇌ 2B Kc is (Kc)∧².

The equilibrium constant is the value of the reaction quotient that is calculated from the expression for chemical equilibrium. A thermodynamic equilibrium constant, denoted by , is defined to be the value of the reaction quotient Qt when forward and reverse reactions occur at the same rate. At chemical equilibrium, the chemical composition of the mixture does not change with time and the Gibbs free energy change. Stability constants, formation constants, binding constants, association constants and dissociation constants are all types of equilibrium constants.

Learn more about equilibrium constant, refer:

https://brainly.com/question/28045045

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Answer:

Gas exchange occurs in microscopic dead-end air-filled sacs called alveoli, where a very thin membrane (called the blood-air barrier) separates the blood in the alveolar capillaries (in the walls of the alveoli) from the alveolar air in the sacs.

Explanation:

Answer:

the action or process of filtering something.

Answer:

k = 2.17E-2 s-1

Explanation:

Initial Concentration [A]o = 0.380 M

Final Concentration [A] = 0.215 M

time, t = 26.3 s

Unit of rate constant =  s-1

Rate constant = ?

The units of the rate constant depends on the order of the reaction. This is a first order reaction due to the units.

The integral rate law for a first order reaction is;

ln[A] = ln[A]o - kt

ln(0.215) = ln(0.380) - k(26.3)

ln(0.215) - ln(0.380) = - k(26.3)

- k(26.3) = -0.57

k = 0.57 / 26.3 = 0.02167

Reporting to three significant figures using E notation;

k = 2.17E-2 s-1

A

think of this way: in Florida and many other costal places, people have sand in their backyards to limit flooding and things due to being so close to the ocean.

Answer:

The planet would stop

Good luck!

Answer:

mass of 1 mole of 34.4liters, O2, STP = 95.039999g

Explanation:

Write the problem as a mathematical expression.

Find the mass in 34.4liters of O2 gas at  STP

To find the mass of 1 mole of 34.4liters, O2, STP look up the atomic mass of each element and multiply it by the number of atoms contained in each element in the molecule.  

mass of 1 mole of 34.4liters, O2, STP = 2(mass of O) + (mass of S) + (mass of T) + (mass of P)

Fill in the atomic masses from the periodic table.

mass of 1 mole of 34.4liters, O2, STP = 2(16) + (32.06999969) + (0) + (30.96999931)

Simplify the result.

mass of 1 mole of 34.4liters, O2, STP = 95.039999g

hope this helps, good luck :)

also ive got no clue why the spacing looks all funny, sry about that

Answer:

daddy will help

Explanation:

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Explanation:

it can suddenly increase when more and more people have babies and the infant rate goes up. and how it might affect the ecosystem is the pollution that people give off.

Answer:

Explanation:

Due to less predators in the Savannah/habitat, the population could unexpectedly grow. This will have an impact on the environment because it will give rise to more prey as there will be fewer predators. If too many herbivores are present on one feeding site, competition for food will occur. If there are more plants in an area than normal, it can increase the population of animals that consume the plant. If the population of one animal rises, the population of animals that consume that animal could also rise.

Population growth isn't always good. A population may often grow too big to sustain the climate. Other modifications in limiting variables can cause a population to decline. The population will decrease if a population becomes diseased, and the population of animals that consume the diseased animals will decrease as well. Populations in nature typically balance themselves. Sometimes, they can't always restore a natural balance as man affects populations.

Answer:

Chemical

Explanation:

the acid is a chemical and the molecules are getting torn apart by the acid

How atoms interact with other atoms is largely dependant on the number of electrons on its outermost layer. The electrons on this layer are called valence electrons.

As you might know, atoms have their electrons arranged in layers/shells, starting at k, l m, n etc. Each layer has a maximum number of electrons it can accommodate, with the outermost one being the valence shell. The first layer (k) can accomodate 2 electrons, the second one (l) can accomodate 8, as can the third one (m) etc.

As a rule of thumb, most atoms don't like being alone. These atoms have a valence shell that isn't saturated. This is the case for hydrogen(1), with one free slot in its outter shell.

However, atoms like helium are a bit different. They are inert, and don't need to bond with other atoms. This is because their valence shell is saturated. In this case, helium saturated the k shell with 2 electrons. Helium in this form will not form bonds.

However, hydrogen is still out there looking for buddies. Hydrogen will bind with any other atom with a free electron. Being extremely common, it's likely that said atom will be another hydrogen.

However, another common example would be for 2 hydrogens to bond with one oxygen, forming h2O (oxygen can form 2 bonds)

Conclusion : helium is inert and will not interact with other atoms. Hydrogen is not, and thus needs to bond with other atoms.

Answer:

C) Atoms

Explanation:

Hope that helped :)

Answer:

Steps 3 and 4 :)

Answer:

ANSWER: 0.331 moles of tin

Explanation: in my working * means multiply and ^ means to the power of.

Ok BASICALLY if you have 6.02*10^23 of something you have yourself 1 mole of things. The atomic weight in the left hand corner of each element in the periodic table gives you the MOLAR MASS, which is the mass of 1 mole of that element. For example, Carbon has a molar mass of 12.011, this means it has 12.011 grams every 1 mole of carbon [C] (12.011 g/mol)

So now, how many moles are in 39.3 grams of tin? Very easy. You will find that in chemistry classes students are taught a basic formula to find the number of moles, which is:

---

Number of moles = Mass given / Molar mass

---

So in order to answer this question and find out the NUMBER OF MOLES, we need to find the MASS GIVEN - this is simply the mass given to you in the question, which is 39.3 grams of tin. We also need to know the MOLAR MASS, which is found in the left hand corner of the element. For tin [Sn] the molar mass is 118.710.

Sub both these into the formula to get:

Number of moles = 39.3 / 118.710

Number of moles = 0.331058883

We are not finished - remember to round of the lowest amount of significant figures found in the working of the question. In the working out, which was (39.3 / 118.71) the 39.3 has 3 significant figures and the 118.70 has 5 significant figures. ALWAYS TAKE THE LOWEST AMOUNT FOUND. The lowest amount is 3, so we must round this answer to 3 significant figures.

It will be: 0.331

Therefore, 0.331 moles of tin atoms are in a pure tin cup with a mass of 39.3.

Hope i helped and good luck!

Answer:

neon is the Noble gas but I have not studied this much

Answer:

297.15kelvin is the correct answer

Answer:297 k

Explanation:

Explanation:

Radioactive decay is the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles (radiation). Decay is said to occur in the parent nucleus and produces a daughter nucleus. This is a random process, i.e. it is impossible to predict the decay of individual atoms.

HOPE THSI HELPS HAVE A NICE DAY!