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Which property of water helps it maintain a relatively stable temperature?

Answers

Answer 1

The property of water that helps it maintain a relatively stable temperature is the presence of hydrogen bonds.

The properties of water

Water is an odourless, tasteless and colourless compound that is made up of hydrogen and oxygen atoms.

The properties of water include the following:

it is a polar solvent,

it has high specific heat capacity

High surface tension, and

Stable boiling and freezing points.

The stable temperature of water, that is the ability to have a constant boiling and freezing points, is as a result of the hydrogen bonds existing between the water molecules.

The hydrogen bonds gives water molecules ability to hold heat better than any other substance.

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Answer 2

Answer:   High specific heat capacity

Explanation:

I took the test


Related Questions

ANSWER FAST
What is the relationship between Ka and Kb with Kw?

(a) The sum of Ka and Kb equals the auto-dissociation constant for water.
(b) The product of Ka and Kb equals the auto-dissociation constant for water.
(c) The quotient of Ka and Kb equals the auto-dissociation constant for water.
(d)The difference of Ka and Kb equals the auto-dissociation constant for water.

Answers

The sum of Ka and Kb equals the auto-dissociation constant for water. The product of Ka and Kb equals the auto-dissociation constant for water.
I’m pretty sure it’s c

Which of these is an example of a prosthesis?
A. A hearing aid
B. A textbook
C. Gloves
D. A pair of boots

Answers

Answer:

hearing aid

Explanation:

an artificial body part

A hearing aid is an example of a prosthesis. Therefore, option A is correct.

A prosthesis is an artificial device or replacement for a missing body part or function. In the case of a hearing aid, it is a device designed to assist people with hearing loss by amplifying sound. It acts as a substitute for the natural function of the ear.

A textbook is a written educational resource, gloves are protective coverings for the hands, and a pair of boots is footwear. These items do not serve as artificial replacements for missing body parts or functions.

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_______ reach the surface first during an earthquake.


Rayleigh waves


P waves


Love waves


S waves

Answers

Answer:p waves hope that helps

In a nonpolar covalent bond, electrons are
a. Located in a mobile "sea" shared by many ions
b. Transferred from one atom to another
c. Shared equally between two atoms
d. Shared UNequally between two atoms

Answers

Answer: c. Shared equally between two atoms

Electrons are shared equally because the atoms have the same electronegativity.

Sketch 10 atoms of aluminum and 6 molecules of oxygen gas in the container on the left. In the right container, sketch the contents after the reaction is complete.

Answers

Answer:

Sketch 10 atoms of aluminum and 6 molecules of oxygen gas in the container on the left. In the right container, sketch the contents after the reaction is complete.

Explanation:

The balanced chemical equation of the reaction is:

[tex]4Al + 3 O_2 -> 2Al_2O_3[/tex]

Though there are 10 atoms of Al, only four atoms will react with every three molecules of oxygen.

Hence, right side the product formed is ---  Al2O3.

125 cm3 of a solution contains 0.25 moles of the solute. What is the concentration of the solution?

Answers

Answer:

Explanation:

125 cm3 -> 0.125 L

M = no. mole / volume (L)

M = 0.25 / 0.125 = 2 M

Which statement best describes the diagram

Answers

Explanation:

the answer will be A

The catalyst cannot be at point A since that's the reactant

Pathway B requires more energy, which makes it slower and harder for the reaction to finish

point D is the product

I believe the answer is a

I para realizar un receta casera de bizcocho se necesitan 100 gramos de azúcar, calcula los moles a los que equivale y el número de moléculas de sacarosa.

Answers

The complete question is as follows: I want to make a homemade cake recipe you need 100 grams of sugar, calculate the moles to which it is equivalent and the number of molecules of sucrose.

Answer: In 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are [tex]1.76 \times 10^{23}[/tex].

Explanation:

Given: Mass = 100 g

Molar mass of sugar = 342.3 g/mol

As number of moles is the mass of substance divided by its molar mass.

Hence, moles of sucrose are calculated as follows.

[tex]Moles = \frac{mass}{molar mass}\\= \frac{100 g}{342.3 g/mol}\\= 0.292 mol[/tex]

According to mole concept, 1 mole of every substance contains [tex]6.022 \times 10^{23}[/tex] molecules.

Hence, the number of molecules present in 0.292 mol are calculated as follows.

[tex]0.292 mol \times 6.022 \times 10^{23}\\= 1.76 \times 10^{23}[/tex]

Thus, we can conclude that in 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are [tex]1.76 \times 10^{23}[/tex].

2.7 x 10^25 molecules of MnO equals how many moles?

Answers

Answer:

27 and 24 zeroes following it

Explanation:

10^25 is 100...(continues for 25 zeroes)

Now we multiply it by 2.7, making it 24 zeroes afterwards.

Avogadro's numbers are used to calculate the number of moles from molecules. There are 44.8 moles in MnO.

What are molecules?

Molecules are the unit of the compound that may have the same or different atoms in it. The number of molecules is used to calculate moles from Avogadro's number.

By Avogadros number 1 mole of substance = 6.02 x 10²³ molecules

So, 2.7 x 10²⁵ molecules will have moles:

(2.7 x 10²⁵ molecules × 1 mole) ÷ (6.02 x 10²³ molecules) = 0.448 × 10² moles

Therefore, there are 44.8 moles of MnO.

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What is this picture an example of?

A. carbon cycle
B. nitrogen cycle
C. water cycle
D. ecological succession

PLEASE HELP

Sorry if the picture is bad Quality

Answers

Answer:

i think it is D

Explanation:

i dont know what you are learning but ecological succession is the change of enviroment pretty much.

What type of structure are ionic lattices?
Big structures
Small structures
Tiny structures
Giant structures

Answers

Answer:

Giant structures

Explanation:

An ionic compound is a giant structure of ions. The ions have a regular, repeating arrangement called an ionic lattice . The lattice is formed because the ions attract each other and form a regular pattern with oppositely charged ions next to each other.

Giant hope this helps

How many grams of FeCl3 are needed to make 1.5 L of a solution with a molarity of 0.450 M?

Answers

Moles=concentration x volume. 1.5/1000 multiply 0.450 = 6.75x10^-4
To find the mass of fecl3, we have the formula, mass=moles x molar mass. 6.75x10^-4 x (55.8+35.5 x 3). = 0.1096g

Not sure tho if i did it right

If the half life of iridium-182 is 15 years, how much of a 3 gram sample is left after 2 half-lives?
A) .57 grams
B) .70 grams
C) 2.25 grams
D) .75 grams

Answers

Answer:

D. 0.75 grams

Explanation:

The data given on the iridium 182 are;

The half life of the iridium 182, [tex]t_{(1/2)}[/tex] = 15 years

The mass of the sample of iridium, N₀ = 3 grams

The amount left, N(t) after two half lives is given as follows;

[tex]N(t) = N_0 \left (\dfrac{1}{2} \right )^{\dfrac{t}{t_{1/2}} }[/tex]

For two half lives, t = 2 × [tex]t_{(1/2)}[/tex]

∴ t = 2 × 15 = 30

[tex]\dfrac{t}{t_{(1/2)}} = \dfrac{30}{15} = 2[/tex]

[tex]\therefore N(t) = 3 \times\left (\dfrac{1}{2} \right )^2 = 0.75[/tex]

∴ The amount left, N(t) = 0.75 grams

PLEASEEEE HELPPPP!!!

What is a spontaneous change?

A. One that has an ordered arrangement of particles.
B. One that occurs on its own.
C. One that has a random arrangement of particles.
D. One that occurs when one specific event happens.

Answers

Answer:

B.

Explanation:

A spotaneous change is one which occurs on its own

A spontaneous change is one that occurs on its own.

What is a Spontaneous Process ?

A spontaneous process is a process which has a natural tendency to occur in one direction , It has no relation with the speed , It can be fast or it can be slow but it doesn't require any external factors to happen.

such reactions might not face change in energy but it will see change in the way the matter or energy is distributed

The example of a spontaneous reaction is the decay of radioactive elements.

Example of Spontaneous Process is also water flowing downhill, it has the natural tendency to flow in that direction.

A spontaneous change is one that occurs on its own.

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Explain how to convert a mass of compound A to a mass of compound D in words using the following reaction:

2A + 4B = C + 3D

You don't have to just give me the answer but if you can help me understand id appreciate it greatly

Answers

Answer:

1. Convert the mass of A to moles dividing in molar mass

2. Convert the moles of A to moles of D (2mol A = 3mol D)

3. Convert the moles of D to mass multiplying by its molar mass

Explanation:

As you can see in the equation, 2moles of A produce 3 moles of D, the equation is:

2mol A = 3mol D

But in the problem you are having the mass of A and you need the mass of D. That means you require to convert the mass of A to moles. With the moles of A you can find the moles of D and, as last, you need to convert the moles of A to mass.

To convert mass to moles or vice versa you must use Molar Mass. That means, the answer is:

1. Convert the mass of A to moles dividing in molar mass2. Convert the moles of A to moles of D (2mol A = 3mol D)3. Convert the moles of D to mass multiplying by its molar mass

Calcule el peso de cromato sodico, Na2CrO4, necesario para preparar 200g de una disolución al 20% de Na2CrO4

Answers

Answer:

40g de cromato sódico serán necesarios

Explanation:

Una solución 20% de Na2CrO4 contiene 20g de Na2CrO4 por cada 100g de solución (Esto es, soluto + solvente). Para preparar 200g de la disolución en mención serán necesarios:

200g solucion * (20g Na2CrO4 / 100g Solución) =

40g de cromato sódico serán necesarios

Which of the following emits a beta particle?
alpha particle
nucleus
hydrogen atoms
photoelectrons

Answers

It’s photoelectrons

PLEASE HELP!!!!!!
The average number of drops of NaHCO3 in the titration lab was 142. Calculate the number of moles of NaCHO3 that were required to neutralize the CH3COOH in the vinegar.
- 1 mole of acetic acid was required for 2 moles of sodium bicarbonate
- 1 mole of acetic acid was required for 1 mole of sodium bicarbonate
- 2 mole of acetic acid was required for 1 mole of sodium bicarbonate
- 1 mole of acetic acid was required for 3 mole of sodium bicarbonate

Answers

Answer: The correct option is 1 mole of acetic acid was required for 2 moles of sodium bicarbonate

Explanation:

We are given:

Average number of drops of sodium bicarbonate = 142

The chemical equation for the reaction of sodium bicarbonate and acetic acid in vinegar follows:

[tex]NaHCO_3+CH_3COOH\rightarrow CH_3COONa+H_2CO_3[/tex]

From the stoichiometry of the reaction:

1 mole of sodium carbonate reacts with 1 mole of acetic acid in vinegar.

Hence, the correct option is 1 mole of acetic acid was required for 2 moles of sodium bicarbonate

A few substances are arranged in the increasing order of ‘forces of attraction’ between their particles. Which one of the following represents a correct arrangement?
(a) Water, air, wind
(b) Air, sugar, oil
(c) c Oxygen, water, sugar​

Answers

Answer:

A.

Explanation:

PO WATER,AIR,WIND

Is soup pure or impure?

Answers

Answer:

I think it's impure . Hope this helps you

Answer:

I think is pure but not 100% pure.

if you have 5.42 x 1024 aluminum atoms, approximately how many moles is that​

Answers

Answer:

It is approximately 9 moles

Explanation:

Divide the aluminum atoms by Avogadro's number

(5.42*10^24)/(6.02*10^23)

= approx. 9 moles

What can a nation do to improve the exchange rate of its currency?

A.
try to improve its balance of trade
B.
try to decrease its trade surplus
C.
try to lower its gross domestic product (GDP)
D.
try to export less while importing more

Answers

Answer:

A

Explanation:

balance the trades and improving them

Answer:

A:try to improve it's balance of trade

Explanation:

median of 4, 6 ,9 helppp​

Answers

For the data set 1, 1, 2, 5, 6, 6, 9 the median is 5. For the data set 1, 1, 2, 6, 6, 9 the median is 4.

hope it helps you

Answer:

The median is 6, since it is the mid value of the set

303.8 liters volume will be occupied by 217.0 grams of methane gas at STP.

True

False

Answers

Answer:

False

Explanation:

It will occupy 271.7

Which kind of energy is stored in the chemical bonds of molecules found in
wood?
A. Mechanical energy
B. Potential energy
C. Gravitational energy
D. Kinetic energy

Answers

Answer:

B. Potential energy

Explanation:

It's not mechanical energy, because it is not doing work

It's not kinetic energy because it;s not moving

It's not gravitational energy because it is not above the ground

It is potential energy because it is stored energy

B. Potential Energy

The diagram shows the basis for forming which of the following?
O nucleic acids
O proteins
O polysaccharides
O lipids

Answers

the answer is prolly A or B

What is the empirical formula of a compound containing 5.03 g carbon, 0.42 g hydrogen, and 44.5 g of chlorine

Answers

Answer:

CHCl₃

Explanation:

We have the following data:

C = 5.03 g

H = 0.42 g

Cl= 44.5 g

First, we divide each mass by the molar mass (MM) of the chemical element to calculate the moles:

MM(C) = 12 g/mol

moles of C = mass/MM(C) = 5.03 g/(12 g/mol) = 0.42 mol C

MM(H) = 1 g/mol

moles of H = mass/MM(H) = 0.42 g/(1 g/mol) = 0.42 mol H

MM(Cl) = 35.4 g/mol

moles of Cl = mass/MM(Cl) = 44.5 g/(35.4 g/mol) = 1.26 mol Cl

Now, we divide the moles by the smallest number of moles (0.42):

0.42 mol C/0.42 = 1 C

0.42 mol H/0.42 = 1 H

1.26 mol Cl/0.42 = 3 Cl

Thus, the C:H:Cl ratio is 1:1:3.

Therefore, the empirical formula is CHCl₃

Answer:

CHCl₃

Explanation:

what is the molecular weight of a gas which diffuses 1/50 as fast as hydrogen​

Answers

the molecular weight of the gas is 5040 g/mol

When the pH of a solution is changed from 4 to 3, the hydronium ion concentration of the
solution
A)
increases by a factor of 10
B)
decreases by a factor of 100
C)
increases by a factor of 100
D)
decreases by a factor of 10

Answers

Answer:increases by a factor of 10

Explanation: the concentration of the solution changed from 4 to 3

1. The electronic configuration of chlorine is
1. 2,7
II. 2,8,8,7
III. 2,8,7
IV. 2,7,8

Answers

Answer:

Chlorine has atomic number 17. Its electronic configuration is 2, 8, 7. It is the second-lightest of the halogens, it appears between fluorine and bromine in the periodic table.

Answer:

III

Explanation:

From the periodic table, Chlorine(Cl) has 17 protons.

And when arranging the proton of elements each shell has a number protons it can take, i.e

2,8,8,8..........

The first shell can only take a maximum of 2 protons while the second shell upwards takes a maximum of 8 protons

Now we want to arrange Chlorine;

1st shell = 2

2nd shell = 8

2 + 8 = 10

17(no. of Chlorine protons) - 10

= 7

therefore,

3rd shell = 7

Therefore,

The electronic configuration of chlorine is

2,8,7

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