Can all molecules become all states of matter?

Answer:

See explanation

Explanation:

Accidental overlap of signals are common in H-1 NMR than in C-13 NMR for the following reasons;

1) 13C has a very low  natural abundance compared to H-1

2) 13C nucleus is s many times lesser in NMR sensitivity than H-1 nucleus.

3) As a result of its low abundance,  13C-13C coupling is not common.

4) Longer relaxation times do not give room for integrations.

5) Peaks in 13C spectra mainly consists of single lines.

As a result of all these, 13C-NMR spectra take longer to acquire than H-NMR. Hence, accidental overlap of signals is much more common in H-1 NMR than in C-13 NMR.

Answer:

The instantaneous speed at 2 seconds =

3 m/s

The average speed over the entire trip is

2 m/s

Explanation:

Answer above is wrong and doesn't state anything about the answer, so this is the correct answer hope this helped! :)

Answer:

1.) 3 m/s   2.) 2 m/s

Explanation:

I hope this helps!!

Answer:

During the daytime, when the sunlight hits the land surface, it is absorbed, causing the surface to heat up (think about how hot pavement gets on a sunny, summer day). The hot surface then heats up the air near the surface, causing it to rise

Explanation:

Answer:

When sunlight reaches the ground surface during the day, it is absorbed, allowing the surface to heat up (think about how hot pavement gets on a sunny, summer day). The air near the hot surface is then heated, allowing it to rise.

Explanation:

Answer:

Answers. 7.8286×10²¹ particles.

Explanation:

The particles present in the sample of ammonium carbonate are  [tex]0.7826*10^{23}[/tex] particles. This can be calculated by using number of moles.

It is defined as the given mass over molar mass.

Given mass= 12.7 g

Molar mass of ammonium carbonate= 96.06 g/mol

Number of moles = 12.7 g / 96.06 g/mol

Number of moles = 0.13 moles

One mole:

A mole is the amount (10) of material containing [tex]6.02214 * 10^{23}[/tex] particles.

1 mol =  [tex]6.02214 * 10^{23}[/tex] particles

So, 0.13 moles = [tex]6.02214*10^{23}*0.13=0.7826*10^{23} \text{ particles}[/tex]

thus, there are [tex]0.7826*10^{23}[/tex] particles are present in 12.7 g of ammonium carbonate.

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Answer:

D

Explanation:

Electrons are being filled according to the increasing other of their sublevel energy

Answer:

no it is not

Explanation:

it exists as atom or ion but not as sodium molecule. So there is no any sodium sodium bonding between two sodium atoms. Sodium combines with other element or group to form compounds of sodium like sodium chloride ,sodium carbonate ,sodium sulphate etc. Sodium has symbol Na and its atomic no. is 11 .

Answer:

[tex]\boxed{One\: Ionic\: Bond}[/tex]

Explanation:

For example, sodium, which is a metal, and chloride, a nonmetal, form an ionic bond to make NaCl.

Hope it helps!<3

Answer:

H20 is a compound so it's the answer

Explanation:

Have a good day

Answer:

d

Explanation:

Answer:

Lowering activation energy of a reaction.

Explanation:

Activation energy is the minimum amount of energy required by the reactants just to be converted to products.

Since catalysts increase the rate of reaction, activation complex is reached in short period of time hence activation energy is lowered.

Answer: Two factors determine whether a substance is a solid, a liquid, or a gas: The kinetic energies of the particles (atoms, molecules, or ions) that make up a substance. Kinetic energy tends to keep the particles moving apart. The attractive intermolecular forces between particles that tend to draw the particles together. As the temperature continues to drop, the matter forms a solid. Due to the solid's low kinetic energy, particles have no "time" to move around, the particles have more "time" to be attracted. Therefore, solids have the strongest intramolecular forces (because they have the strongest attraction). The three states of matter are: Solids: The strong bonds between molecules make solids rigid and very difficult to deform. Liquids: The relatively weak bonds between molecules allow liquids to be deformed without effort.

Hope this helps.......... Stay safe and have a Merry Christmas!!!!!! :D

Answer:

telescope

Explanation:

i took the test

The telescope provide a means to explore the universe. There are different types of telescopes like reflecting, refracting, x-ray, gamma ray, etc. telescopes. The telescope used by the astronomer to study celestial objects with the shortest wavelengths is x-ray or gamma ray telescope.

An instrument which is used to view the distant objects is defined as the telescope. The higher the magnification of the telescope, the better will be the view. The lens in the front of the telescope is known as the objective lens.

There are two types of telescopes, they are refracting and reflecting telescopes. The refracting telescopes use lenses to focus the light whereas the reflecting telescopes use mirrors.

The X-ray and gamma ray telescopes collect light in the shorter wavelengths. X - ray telescopes help to study the sun, supernova and the other stars. Gamma ray telescope study black holes and pulsars.

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Answer:

The Middle Years

Explanation:

Depending on the size of the star, the period of which thermal energy is created through the process of nuclear fusion can vary. However, for the life cycle of an average star, this can be roughly a few billion to 10 or even 15 billion years

The number of hours required : 37.2 hours

Given

⁴²K (potassium -42)

Required

The number of hours

Solution

The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.  

Usually, radioactive elements have an unstable atomic nucleus.  

Based on Table N(attached), the half-life for ⁴²K is 12.4 hours, which means half of a sample of ⁴²K will decay in 12.4 hours

For three half-life periods :

[tex]\tt 3\times 12.4=37.2~hours[/tex]

Answer:

A

Explanation:

A salad with lettuce, cheese, seeds, tomatoes, broccoli, and other vegetables is an example of a heterogeneous mixture.

Milk is not mixed with anything so that is incorrect

River water is mixed in with dirt and minerals so this one is incorrect

Beach sand is incorrect because you can see colored particles.

Answer:

protons: 36

neutrons:48

electrons:36

Explanation:

the number of protons in an element is = to the atomic # (36)

the number of neutrons is the atomic mass - atomic # (84-36=48)

In a neutral charged element the # of protons = # of electrons

Answer:

detail is given below.

Explanation:

The charged particles of nucleus are protons while neutrons are neutral having no charge.

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus.

Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

Symbol of proton= P⁺  

Symbol of neutron= n⁰  

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons.

one proton contribute 1 amu to the total weight. There are 20 protons and 20 neutrons in Ca thus its atomic mass is 40 amu.

While the atomic number is 20.

Answer: They are all odorless, colorless, monatomic gases with very low chemical reactivity.

Explanation: Plz give brainliest

Answer:

running helps my heart beat

Answer:

Exercise: The easiest and most effective way to achieve a lasting lower heart rate is to do regular exercise. 2. Stay hydrated: When the body is dehydrated, the heart has to work harder to stabilize blood flow. Throughout the day, drink plenty of sugar- and caffeine-free beverages, such as water and herbal tea.

Answer:

YCr2O7

Explanation:

Answer:

K potassium have least ionization energy among these four

Explanation:

Ionization energy values are given in kilo joule per mole

Ca 590

Ge 762

K 419

Ga 579

From above data we can understand stand K has least and Ge has highest ionization energy

Answer:

It's the second one down.

Explanation:

Gold

Mass 197

Number of Protons: 79

Number of Neutrons: 197 - 79 = 118

Number of electrons: = number of protons = 97

Answer:

[tex]\boxed {\boxed {\sf About \ 3.53 \ *10^{24}atoms \ Co}}[/tex]

Explanation:

To convert from grams to atoms:

1. Convert grams to moles

First, find the molar mass of cobalt using the Periodic Table of Elements.

Next, use this mass as a ratio or fraction.

[tex]\frac{58.93319 \ g\ Co}{1 \ mol \ Co}[/tex]

Multiply the mass of the given sample (345 grams) by this ratio.

[tex]345 \ g \ Co *\frac{58.93319 \ g\ Co}{1 \ mol \ Co}[/tex]

Flip the fraction so the grams of Cobalt will cancel each other out when multiplying.

[tex]345 \ g \ Co *\frac{1 \ mol \ Co}{58.93319 \ g\ Co}[/tex]

[tex]345 \ *\frac{1 \ mol \ Co}{58.93319 }[/tex]

[tex]\frac{345 \ mol \ Co}{58.93319 } =5.854086636 \ mol \ Co[/tex]

2. Convert moles to atoms

Use Avogadro's Number, which tells us the number of units (in this case atoms) in 1 mole.

Use this number as a ratio or fraction.

[tex]\frac{6.022 * 10^{23} \ atoms \ Co}{1 \ mol \ Co}}[/tex]

Multiply this ratio by the number of moles we found.

[tex]5.854086636 \ mol \ Co*\frac{6.022 * 10^{23 }\ atoms \ Co}{1 \ mol \ Co}}[/tex]

The moles of Cobalt will cancel.

[tex]5.854086636 \ *\frac{6.022 * 10^{23 }\ atoms \ Co}{1 }}[/tex]

[tex]5.854086636 \ *{6.022 * 10^{23 }\ atoms \ Co}[/tex]

[tex]3.52533097*10^{24} \ atoms \ Co[/tex]

3.Round

The original measurement of 345 has 3 significant figures (3, 4, and 5). We must round to 3 sig figs, which is the hundredth place for this measurement.

[tex]3.52533097*10^{24} \ atoms \ Co[/tex]

The 5 in the thousandth place tells us to round the 2 to a 3.

[tex]3.53 \ *10^{24}atoms \ Co[/tex]

There are about 3.53*10²⁴ atoms of cobalt in 345 grams.

Answer:

11.43 cm

Explanation:

Answer:

detail is given below.

Explanation:

The charged particles of nucleus are protons while neutrons are neutral having no charge.

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus. Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

Symbol of proton= P⁺  

Symbol of neutron= n⁰  

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons.

one proton contribute 1 amu to the total weight. There are 20 protons and 20 neutrons in Ca thus its atomic mass is 40 amu.

While the atomic number is 20.

In an ecosystem, 20 percent of the protein consumed by humans around the world is fish.

An 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 ecosystem 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 ecosystem .Living organisms also influence the quantity of biomass which is present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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The mass of sodium chloride : 3.5 g

Given

Reaction :

2.5g of sodium sulphate + 4.5g of barium chloride ⇒ 3.5g of barium sulphate + sodium chloride

Required

The mass of sodium chloride

Solution

Conservation of mass applies to a closed system, where the masses before and after the reaction are the same

From the reaction :

mass of reactants = 2.5 g + 4.5 g = 7.0 g

mass of products = 3.5 g + mass of sodium chloride

mass of reactants = mass of products

7.0 g = 3.5 g + mass of sodium chloride

mass of sodium chloride = 7 g - 3.5 g =3.5 g

Answer:

1. Classical conditioning. Classical conditioning is a type of associative learning based on the association between a neutral stimulus with another that is significant for a person or an animal in order to generate a similar response.

Have a great day/night, and stay safe!

Answer:

36.28 kg

Explanation:

Given data:

Gravitational potential energy of object = 800 J

Height from ground = 2.245 m

Mass of object = ?

Solution:

Formula:

P.E = mgh

g =acceleration due to gravity =  9.8 m/s²

by putting values,

800 J = m× 9.8 m/s² ×2.25 m

J = kgm²/s²

800 kgm²/s² = m× 22.05 m²/s²

m = 800 kgm²/s² /22.05 m²/s²

m = 36.28 kg