Which statement best describes the atoms of the gas neon?
They slide past each other.
They move freely in all directions.
They vibrate in place.
They are packed closely together.

We have that

the Carbon isotopes represents a pair of isotopes

Option B

From the question we are told

Which of the following represents a pair of isotopes?

Generally

Isotopes

This is defined as variant forms of an element with variant atomic mass but same proton number

Therefore

the Carbon isotopes represents a pair of isotopes

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Answer:

3.6 gallons are equal to 56 cups

Answer:

7.20 kg/L

Explanation:

Density is mass (kg) / volume (L).

18.00kg/2.50L = 7.20 kg/L

If you need it in g/mL this is the equation:

[tex]\frac{7.20kg}{L} *\frac{1000g}{1kg} *\frac{1L}{1000mL} = 7.20g/mL[/tex]

Answer:

1.17x107m

Explanation:

Answer:yyyyyyyyyeeeeeeetttttt you will figure it out

Explanation:

Answer:

C.

Explanation:

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases, equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

Answer:

C, since matter cannot be created or destroyed the same number of particles must be present on both sides of the equation. Hence why all chemical reactions must be balanced.

Explanation:

Answer:

In a open system, the thermal energy of a system may be changed by adding or removing matter with a different temperature.

Explanation:

The thermal energy of a system can be changed when a new substance of different temperature is introduced into the system

The thermal energy of a system is the amount of heat energy contained in that system.

The quantity of heat in a system is given as;

[tex]Q = mc \Delta \theta[/tex]

where;

[tex]\Delta \theta[/tex] is the change in the temperature of the system

When a new substance is introduced into the system, the temperature of the resulting system changes.

For example;

Thus, the thermal energy of a system can be changed when a new substance of different temperature is introduced into the system.

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Answer:

I don't no sorry. ਕਿਉੁਂਕਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ 478figxigxurRyyv ਸ੍

i think it would be neutral

Answer:

B) Ca(H2PO4)2

Explanation:

To solve this we must be knowing each and every concept related to chemical formula.  Therefore, the correct option is option B among all the given options.

The chemical formula is indeed a means of expressing information about just the chemical proportion of atoms that comprise a certain chemical compound as well as molecule through the use of chemical element numbers and symbols.

Furthermore, the molecular formula does not contain any words and does not serve as a chemical name. However, it just indicates basic chemical structures and is not the same as the entire chemical structural formula.  The correct formula for calcium dihydrogen phosphate is Ca(H[tex]_2[/tex]PO[tex]_4[/tex])[tex]_2[/tex].

Therefore, the correct option is option B among all the given options.

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Answer:

it drifts through the atmosphere and the vapor absorbs heat then the warm air rises up therefore leaving the planet's surface and releasing the heat back into the upper part of the atmosphere

Answer:

In order to develop a healthy, working hypothesis it's best to work within the lines of: If _______, Then ______, as an act of if, being the input (independent) variable and then being the output (dependent).

Answer:

SAme. What's le question, I will answer correctly.

Explanation:

Answer:

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. ... A chemical property describes the ability of a substance to undergo a specific chemical change.

Explanation:

Answer:

B I think

Explanation:

Answer:

B, I'm guessing by their characteristics

Answer:

Kwaishokor is a form of severe protein malnutrition characterized by edema and an enlarged liver with fattty infiltrates.

Explanation:

Answer:

0

Explanation:

The number of unpaired electrons in  is 0

Answer:

4 unpaired electrons

Explanation:

becausd it have 4 unpaired electros it is paramagnetic

Answer:

I will assume that you mean

STP (Standard Temperature and Pressure)

21

3

≈

7 L

Explanation:

Since we know that

1 mole

of an ideal gas occupies

22.4 L

at

STP

then can establish the following relationships:

22.4 L

1 mole

or

1 mole

22.4 L

Knowing that, we can solve for the volume occupied by the helium gas,

0.35

mole

1

⋅

22.4 L

1

mole

=

7.84 L

as

7.84 L

−

−

−

−

−

The answer makes sense because if

1 mole

occupies

22.4 L

, then

0.35 moles

(roughly a third of the moles) will occupy a third of

22.4 L

(

if we round down 22.4 L to 21 L

)

−

−

−

21

3

≈

7 L

The volume occupied by 0.34 moles of Helium Gas is 7.62 L.

Any gas from the  group of rare gases that include helium, neon, argon, krypton, xenon, and usually radon and that exhibit great stability and extremely low reaction rates. — called also inert gas.

They have properties tending to an ideal gas.

It is asked that what volume will be occupied by  0.34 moles Helium Gas

The ideal gas equation is written as

PV = nRT

At STP , T = 273 K

P= 1atm

R = 0.0821 L(atm) mol⁻¹K⁻¹

Substituting the values

1 * V = 0.34 * 0.0821 * 273

V = 7.62 L

Therefore the volume occupied by 0.34 moles of Helium Gas is 7.62 L.

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Answer:

B. more it will warp space

Explanation:

Answer:

Answers in explanation.

Explanation:

30. A (A chemical changes changes the chemical properties)

31. C (rusting is an example of a chemical change

32. B (A reaction requires energy, so some energy will be expelled)

33. B (Color change is an example of a chemical change)

34. A (The law of the conservation of mass: Mass and Energy cannot be created nor destroyed)

Answer:

n the sciences, the “tools” for measuring the volumes of liquids are generally made from glass, plastic or occasionally metal, although professionals referred to all of them as “glassware.” Scientists, and chemists in particular, have a variety of glassware at their disposal for measuring volumes. The particular piece of glassware chosen in any situation will depend primarily upon two factors: the required volume and the accuracy required for the measurement.

Explanation:

Hope this helps leave a heart c:

Answer:

The answer is C. Hydrogen

Explanation:

It has a radius of 53 pm calculated.

Answer:

63.9 cm

Explanation:

Answer:

B

Explanation:

The attraction is stronger when the magnet is closer so moving it away would decrease the strength.

Answer:

the internal force of attraction between the particle or molecules.

In solids the force is max.

In liquid it is intermediate.

And least in the gases..

Answer:

The answer will be 2.98K

Explanation:

Using the formula:

Q = mc∆T

Q= 5,800 (heat in joules)

m= convert 15.2kg to g which is 15200g (mass in grams)

c= 0.128 J/g °c (Specific heat capacity)

∆T=  what we need to find (temperature change)

5800J = 15200g x 0.128 x ∆T

= 2.98K  

Answer: The circulatory system.

Explanation: The circulatory system, which is part of the "cardiovascular" system, is one of the eleven organ systems of the human body. Its main function is to transport nutrients to cells and wastes from cells (Figure 3.4. 1). This system consists of the heart, blood, and blood vessels.

The blood cells carry nutrients from food to the rest of the cells in the body.

The human circulatory system moves important nutrients and minerals throughout the body and metabolic waste products out from the body. The human circulatory system contains blood, blood vessels, heart, and lymph.

The human circulatory system provides essential nutrients, minerals, oxygen, and hormones to different parts of the body and is responsible for collecting toxins from the cells and tissues to be purified or eliminated from the body.

The human circulatory system contains a wide network of blood vessels. These constitute arteries, veins, and capillaries. The primary function of blood vessels is to transport nutrients and oxygenated blood to all parts of the body.

The Circulatory system helps in sustaining all the organ systems and transports blood, nutrients, oxygen, and hormones throughout the body. It secures cells from pathogens and acts as an interface for cell to cell interaction.

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im just answering questions to get points Explanation:

i dont know what points do

Answer:

Hello I passed my Chemistry exam (Acellus) in the beginning of June:)

Explanation: