who know how to do this thank you

Who Know How To Do This Thank You

Answers

Answer 1

Number of neutrons :

Argon=22

Boron=6

Further explanation

There are two components that accompany an element, the mass number and atomic number

Atoms are composed of 3 types of basic particles (subatomic particles): protons, electrons, and neutrons

The Atomic Number (Z) indicates the number of protons and electrons in an atom of an element.

Atomic number = number of protons = number of electrons ⇒ neutral number

Atomic mass is the sum of protons and neutrons

Atomic Number (Z) = Atomic mass (A) - Number of Neutrons

Argon has an atomic number of 18 and a mass number of 39,948

number of neutrons =

[tex]\tt 39.948-18=21,948\approx 22[/tex]

Boron has an atomic number of 5 and a mass number of 10,811

number of neutrons =

[tex]\tt 10.811-5=5.811\approx 6[/tex]


Related Questions

I need help with this one please it’s science

Answers

Answer: A change in appearance. (Please say thanks!)

Explanation:

The biggest sign of a chemical change is change in appearance.

Answer:

d

Explanation:

What cause a earthquake

Answers

An earthquake is caused by a sudden slip on a fault. ... When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. In California there are two plates - the Pacific Plate and the North American Plate.

Answer:

Sudden motions in Earths mantle causeing the crust to shift.

Explanation:

10. A gas sample that has a mass of 6g occupies 400 mL at 504°C and a pressure of 600 mm Hg. Calculate the gas’s density at STP.

Answers

Answer:

51 g/mol

Explanation:

Whenever you see molar masses in gas law questions, more often than not density will be involved. This question is no different. To solve this, however, we will first need to play with the combined ideal gas equation PV=nRT to make it work for density and molar mass. The derivation is simple but for the sake of time and space, I will skip it. Hence, just take my word for it that you will end up with the equation:

How many electrons does each atom have? What group is each in?

Answers

In an atom, the electron's spin around the center, also called the nucleus. The electrons like to be in separate shells/orbitals. Shell number one can only hold 2 electrons, shell two can hold 8, and for the first eighteen elements shell, three can hold a maximum of eight electrons. ( This is the answer to both questions!)

the following body systems is responsible for releasing waste?

Answers

Answer:

the urinary system??

Explanation:

The top layer of a flat lying sedimentary rock is the…
most eroded
most under formed
oldest
youngest

Answers

youngest

hope this helps anyone<3

Answer:

The answer is youngest.

Explanation:

need help asap!!!!
will mark brainliest!!!

Answers

We can verify the properties as follows;

1) Sour taste - Put some soda on your tongue

2) Corrode metals - Put a little soda on a clean metal surface

3) Effect on Litmus paper - Dip a blue litmus paper in soda

4) Electrolysis - Add two electrodes to soda and connect a battery.

Does Soda show acidic properties?

Soda, specifically carbonated beverages like cola or soda pop, typically exhibits acidic properties. The acidity of soda is primarily due to the presence of carbonic acid (H₂CO₃), which forms when carbon dioxide gas (CO₂) dissolves in water.

When carbon dioxide is dissolved in water under high pressure, it forms carbonic acid through the following reaction:

CO₂ + H₂O ⇌ H₂CO₃

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PLEASE HELP!!!!

What is the molar mass of 18.12 g of gas
exerting a pressure of 3.05 atm on the
walls of a 5.85 L container at 280 K?

Answers

Answer:

23.3 g/mol

Explanation:

The molar mass of 18.12 g of gas exerts a pressure of 3.05 atm on the walls of a 5.85 L container at 280 K is 23.3 g/mole.

What is the molar mass?

Molar mass is the concentration of a substance that is present in a specific liquid. It is also called the concentration of a substance.

The molar mass can be calculated by the formula of an ideal gas:

PV = nRT

P is the pressure

V is the volume

n is the number of moles

R is the constant of gas.

T is the temperature.

The given amounts are the molar mass of 18.12 g.

The pressure is 3.05 atm.

The volume is  5.85 L

The temperature is 280 K

Putting the value in the equation

n = PV/RT = (3.05) (5.85) / (0.0821) (280) = 0.777 moles of gas

Molar mass = 18.12 g/0.777 moles = 23.3 g/mole

Thus, the Molar mass is 23.3 g/mole.

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calculate the number of moles
for 66 gram of CO2​

Answers

Answer:

1.55

Explanation:

The number of moles = given mass / molar mass

The given mass is 66 g and the molar mass is 44 g/molar mass

Substituting the values in, we get that:

the number of moles = 66/44

the number of moles = 1.55

hope this helped!

Elements that are generally shiny when smooth and clean.

Answers

metals are elements that are generally shiny when smooth and clean

Use the equation below to solve the problem that follows.

2H2 (g) + O2 (g) → 2H2O (g)

When David reacts 13.8 grams of hydrogen gas with excess oxygen, 87.0 grams of water are formed. Calculate his percent yield of water.

Im very loss with this question

Answers

Percent yield of water : 70%

Further explanation

Reaction

2H₂ (g) + O₂ (g) → 2H₂O (g)

mol H₂(MW= 2 g/mol) :

[tex]\tt \dfrac{13.8~g}{2~g/mol}=6.9~mol[/tex]

mol H₂O = mol H₂ = 6.9

mass H₂O(theoretical) :

[tex]\tt 6.9\times 18~g/mol=124.2~g[/tex]

[tex]\tt \%yield=\dfrac{actual}{theoretical}\times 100\%\\\\\%yield=\dfrac{87}{124.2}\times 100\%=70\%[/tex]

What is one way land helps reduce the force of hurricane as it moves inland

Answers

Answer:

because they are fueled by evaporation from warm ocean water, which dry land surfaces do not provide.

Explanation:

Answer: Other person was wrong correct answer is Land filters the water forced up from the sea by the wind :)

Explanation:

Neutral atoms have the same number of____
What’s the missing word?

Answers

Answer:

electrons and protons

Explanation:

What is the function of enzymes in living organisms?

Answers

Answer:

jh

Explanation:

.Which statement about transition elements is correct?A Their soluble salts usually form coloured aqueous solutions. B They are all in the same group of the Periodic Table. C They are non-metals with high melting points. D They can be mixed together to form compounds

Answers

Answer:

A Their soluble salts usually form coloured aqueous solutions

This is Q7 and I need help, can someone help.

Answers

Answer:

Answer to A. helium, neon, argon, krypton, xenon, and radon, B. Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2). C. Elements Compounds

Ar (argon) HBr (hydrogen bromide) C 3H 8 (propane)

Kr (krypton) HI (hydrogen iodide) C 4H 10 (butane)

Xe (xenon) HCN (hydrogen cyanide)* CO (carbon monoxide)

Rn (radon) H 2S (hydrogen sulfide) CO 2 (carbon dioxide)

Explanation:

50 points:


Several thousand years ago, people sought after the truth about the nature of matter by

Answers

Answer:

Is this a true or false?

Explanation:

is this a t or f question?

PLS HELP
True or False: Water molecules, as a liquid, are very spread apart because of their attractions for one another. *

Answers

false, if you compare how spread apart the molecules in liquids are compared to gases and solids, liquids would be in the middle. They aren’t very spread apart, per say, but they aren’t compact since water is not very dense.

What has modern media shown you about atoms

Answers

Atoms like in chemistry class?
What do you. Mean by that

Janet is sliding a box across the floor what does she need to know to calculate the force on a box?

Answers

Answer:

She needs to know the Mass and acceleration

Janet needs to know the mass of the box and acceleration .

What is force?

Force is defined as a cause which is capable of changing the motion of an object. It can cause an object  which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.

It has SI units of Newton  and is represented by'F'.Newton's second law states that force which acts on an object  is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.

The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.

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Explain What is an elementary reaction and how is it related to a reaction mechanism

Answers

Answer:

The sequence of individual steps, or elementary reactions, by which reactants are converted into products during the course of a reaction is called the reaction mechanism. The overall rate of a reaction is determined by the rate of the slowest step, called the rate-determining step.

Explanation:

The half-life of carbon-14 is about ____________ years.

Fill in the blank.

Answers

The half-life of carbon-14 is about 5730 years

Answer:

5730 years

Explanation: for more on radiocarbon dating.) and hence explain why the amount of carbon-14 in the sample decays by half over any period of 5730 years.

What are isotopes?
A.) Atoms of the same element that have a different number of protons
B.) Atoms of the same element that have a different number of neutrons
C.) Atoms of different elements that have the same number of neutrons
D.) Atoms that are unstable

Answers

Answer:

B

Explanation:

Answer:

B. ATOMS OF THE SAME ELEMENT THAT HAVE A DIFFERENT NUMBER OF NUETRONS

Explanation:

Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

Fossils of sea creatures have been found near the top of Mount Everest (8848m above the sea level). How do you think they could have got there?

Answers

Explanation:

The fossils can be found on top of mount Everest due to regional uplift of the crust.

Mount Everest is located a along a convergent margin between two tectonic plate. Due to similarity in density between the two margins, when they collide, there is tectonic build up.

Sedimentary rock layers originally at sea levels are uplifted to those tower peaks as the plate continues to grind against each other.

Most sedimentary rocks contains fossils. As the grinding continues, the uplift and deformation continues.

Explain the relationship between protons and ionization energy

Answers

The more protons in the nucleus, the stronger the attraction of the nucleus to electrons. This stronger attraction makes it more difficult to remove electrons. Within a group, the ionization energy decreases as the size of the atom gets larger.

True or False: Plants don't have brains, but they still adapt to their environments.

Answers

Answer:

True

Explanation:

I just took that last year, and got a100%

True, Plants don't have brains, but they still adapt to their environments.

What is adaptation?

Adaptation is a process where they are changing their nature to suit the environment.

We have seen that plants do adaptation according to the environment, as in the summer season their leaves are hanging down but in the rainy season they show blossoms and green leaves. So, according to the environment for the survival and reproduction they adapt their body.

Hence, plants have no brains, but they still adapt.

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Give the IUPAC name:​

Answers

Answer:

hope the answer helps you

Explanation:

3 ethyl 2 hexene

plzz give me brainliest

By the IUPAC Naming Convention followed by every chemical standards, the structure from the question is named as 4,4-dimethyl heptane.

IUPAC Stands for International Union of Pure and Applied Chemistry.This organisation issued some standards for naming any chemical components that is followed world wide.

According to the IUPAC Standards:

First of all we have to identify the longest carbon chain which is an alkane group according to this question.As a result of 7 carbon linked with single bonds it will be named heptane.Now moving to the other parts:

[tex]-CH3[/tex] is termed as methyl

As the both the methyl group( [tex]-CH3[/tex]  ) is linked with the fourth carbon the numbering is 4 for methyl.So,the IUPAC name of this compound in the image is 4,4-dimethyl heptane.

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C3H5(NO3)3
How many atoms of oxygen are there?

Answers

Answer: 6

Explanation:

Mark brainliest plzzz if correct

In C₃H₅( NO₃ )₃ there are total six number of oxygen atoms are present and three atoms of carbon, 5 atoms of hydrogen and 3 atoms of nitrogen present.

What is oxygen ?

The chemical element with the atomic number 8 and symbol O is called oxygen. It belongs to the periodic table's chalcogen group, is a very reactive nonmetal, and an oxidizing agent that easily produces oxides with most elements as well as other compounds.

Dioxygen is the name given to the colorless, odorless, and tasteless gas that is oxygen at standard pressure and temperature.

Chemical elements are substances that only contain one kind of atom, such as oxygen. Since oxygen has an atomic number of 8 and the official chemical symbol O, an oxygen atom has eight protons in its nucleus. At room temperature, oxygen is a gas that has no flavor, color, or odor.

Thus, In C₃H₅( NO₃ )₃ there are total six number of oxygen atoms are present.

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Which class of organic compound is most likely to be used in anesthetics?
ether
ester
alkyl halide
carboxylic acid

Answers

Answer:

A.

ether

Explanation:

i got it right on edg 2020 and they use ether in pokemon games to heal PP so that makes logical sense lol

The class of organic compounds that are used in anesthetics is:

A. Ether

It is a functional group consisting of C and O.

What are Anesthetics?

Anesthetics are an assorted gathering of medications with especially unique synthetic designs, going from basic inorganic atoms like nitrous oxide to additional perplexing natural specialists.

Organic compound is one that contains a bond with a carbon particle. In ethers, the practical gathering that is available is C=O. Ether, as a fluid, discharges fumes that are breathed in. Another very powerful fluid sedative is propofol, controlled intravenously.

Thus, correct option is A.

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Jai was measuring the radioactivity of different radioactive isotopes. Isotope A had a starting radioactive level of 50 g, and after 4 days it measured at 30 g. Isotope B had a starting radioactive level of 75 g, and after 4 days it measured at 25 g. Which best explains the isotopes?

Isotope A has a shorter half-life than Isotope B.
Isotope A has a longer half-life than Isotope B.
Isotope A has half the half-life of Isotope B.
Isotope A has twice the half-life of Isotope B.

Answers

Answer:

b

Explanation:

I did the test mark the brianlyes byyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

Answer:

Its the second one (B)

Explanation:

Marki the person that answerd first brainliest :)

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