How many electrons does one neutrally charged atom of argon have?
A 18
O B.22
C. 40
D. 58

Answers

Answer 1

Answer:

A. 18

Explanation:

A neutral charged atom is an atom with 0 charge.

Anyway, first look at the periodic table and find Argon.

After you find Argon, look at its Atomic number.

Its Atomic number is 18.

And a neutral atom of Argon has 0 charge.

So we need 18 electrons for Argon to cancel out and become neutral.

Basic math:

18 +( -18) = 0

Therefore, the correct answer is A. 18

Hope it helped!

Answer 2

One neutrally charged atom of argon (Ar) has 18 electrons. (Option B)

What is argon?

Argon is an element with atomic number 18, which means it has 18 protons in its nucleus.

In a neutral atom, the number of electrons is equal to the number of protons. Therefore, a neutrally charged atom of argon will also have 18 electrons orbiting around the nucleus.

The number of electrons in an atom is determined by its atomic number and is essential for the atom's chemical properties and interactions.

Argon is commonly used as an inert gas in various applications, including welding, lighting, and as a protective gas in the manufacturing of electronics.

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Related Questions

why do stars appear to be bigger in the night?

Answers

Answer: in the daytime the sun is out so the stars are not visible becuase the suns reflection! At night When you gaze at the constellations, every star produces an image that's the same size, but your retina isn't sensitive enough to respond to the outer parts of those images except for the brighter stars — which therefore look bigger than the fainter ones.

Explanation:

This is what I found on goog.le a while ago now it might actually help if I’m wrong I apologiz, I hope this was your quistion!

How to calculate the mass of the sulfur (VI) oxide molecule

Answers

Explanation:

If you look back at the formula ( SO2 ), you can see that there is one sulfur and two oxygens present. Therefore, the molar mass of sulfur dioxide is [1 × 32.1 + 2 × 16.0] = 64.1 g/mol.

A student measures 10 g of baking soda and mixes it with 5 grams of vinegar. The mixture begins to bubble and fizz and feels cold to the touch. Once the reaction is over the student weighs the solution and discovers that the resulting mixture weighs only 12g. What happened to the missing 3 grams of product? Use the Law of Conservation of Matter in your answer.

Answers

Answer:

Some of the product is a gas that goes to the atmosphere.

Explanation:

Based on the chemical reaction of baking soda (Sodium bicarbonate: NaHCO₃) with vinegar (Acetic acid: CH₃COOH):

NaHCO₃(aq) + CH₃COOH(aq) → H₂O(aq) +  CO₂(g) + CH₃COONa(aq)

When the reaction occurs, one of the products (CO₂) is a gas that will disappear of the mixture to stay in the atmosphere. That is the reason why there are missing 3 grams.

4.0 moles of H2O would have what mass?
Group of answer choices

18 g

23 g

68 g

72 g

Answers

Answer:

How many moles H2O in 1 grams? The answer is 0.055508435061792.

We assume you are converting between moles H2O and gram.

You can view more details on each measurement unit:

molecular weight of H2O or grams

This compound is also known as Water or Dihydrogen Monoxide.

The SI base unit for amount of substance is the mole.

1 mole is equal to 1 moles H2O, or 18.01528 grams.

Explanation:

The mass of 4.0 moles of water is 72 grams.

Explanation:

Moles of the substance is equal to the ratio of the mass of substance to the molar mass of the substance:

[tex]Moles=\frac{\text{mass of substance}}{\text{molar mass of substance}}[/tex]

Given:

The 4.0 moles of water

To find:

Mass of moles of water

Solution:

The moles of water = 4.0 moles

The mass of water = M

The molar mass of water = 18.01528 g/mol

[tex]4.0=\frac{m}{ 18.01528 g/mol}\\m=4.0\times 18.01528 g/mol\\=72.06112 g\approx 72 g[/tex]

The mass of 4.0 moles of water is 72 grams.

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Apollo 11 made a ______ landing.

Answers

Answer:

Apollo 11 made a capsule landing

Explanation:

Answer: i don’t know what type of landing you mean

Explanation:

They did a lunar landing then reentry and then capsule landing.

A piece of mental with a mass of 106 g is placed in a 50 mL graduated cylinder.The volume rises from 20 mL to 31 mL. What is the destiny of the metal?

Answers

Answer:

9.64g/mL

Explanation:

Given parameters:

Mass of the metal  = 106g

Volume of cylinder = 50mL

Volume difference  = 31mL  - 20mL  = 11mL

Unknown:

Density of the metal  = ?

Solution:

To find the density of the metal, we use;

 Density  = [tex]\frac{mass}{volume}[/tex]  

 Density  = [tex]\frac{106}{11}[/tex]   = 9.64g/mL

how can balancing equations support the law of conservation

Answers

Answer:

detail is given below.

Explanation:

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

For example:

In given photosynthesis reaction:

6CO₂ + 6H₂O  → C₆H₁₂O₆ + 6O₂

The given equation is balanced chemical equation of photosynthesis. There are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.

If equation is not balanced,

CO₂ + H₂O  → C₆H₁₂O₆ + O₂

It can not follow the law of conservation of mass because mass is not equal on both side of equation.

24.Og sample of carbon contains how may moles?

Answers

Answer:

2 moles

Explanation:

1.9982182553889358 real number but round up to 2

Something that causes a response in an organism is called a(n) _____.

Answers

A Stimulus is the answer

The Faruq family uses 548 liters of water per day.
The Chammas family uses 3 times as much water
per day.

Answers

Answer:

11508 liters

Explanation:

The Faruq family uses 548 liters of water per day.  The Chammas family uses 3 times as much water  per day. How much water does the Chammas family use per week?

Solution:

The amount of water used by the Chammas family is three times that of the Faruq family per day, hence:

Amount of water used by Chammas family in a day = 3 * water used by Faruq family in a day

Amount of water used by Chammas family in a day = 3 * 548 = 1644 liters

The amount of water used by the Chammas family in a week = 1644 liters per day * 7 days in a week = 11508 liters

Therefore 11508 liters of water was used by the Chammas family in a week

How are sodium (Na) and potassium (K) similar?
A. They rarely react.
B. They are highly reactive.
C. They are hard metals.
D. They are soft nonmetals.

Answers

Answer:

B. They are highly reactive.

Explanation:

Answer:

B: They are highly reactive

Explanation:

Sodium(Na) and potassium(K) are in the same family/group which is the Alkali Metal group.  These groups have their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water. This is because enough heat is given off during the exothermic reaction to ignite the H2(g). Therefore, they are similar because of their reactivity.

Hope I helped!

And this one please thank you.

Answers

Answer:

E

Explanation:

Look at bottom numbers.

90 → 88 + x

it means,

90=88+x

hence x = 2

it is also valid for top numbers.

230=226+y

y = 4

The way Earth's rotation makes winds curve.

Answers

Answer:

it is called the prevailing westerlies

Explanation:

A state of matter in which the electrons temporarily separate from the protons. Group of answer choices gas plasma liquid Bose-Einstein Condensate

Answers

Answer:

Plasma.

Explanation:

In science, matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states. The three (3) classical states of matter are;

I. Solid.

II. Liquid.

III. Gas

Plasma can be defined as a state of matter in which the electrons temporarily separate from the protons and as a result, it is generally referred to as the fourth (4th) state of matter due to its superheated nature.

4 Explain why some acids are safe to consume
while others are not.

Answers

Answer:

Household cleaners, antiseptics and battery juice are examples of toxic chemicals that you cannot consume because they have high acids concentrations. However some are very healthy such as critic acids found in oranges. :) Hope this helped.

_____ are factors that are not tested and remain constant. A. Dependent variables B. Controlled variables C. Independent variables D. Constant variables

Answers

Answer:

B. Controlled variables

Explanation:

The Dependent sample t-test compares the mean score of measurements in one group to that of another other group. It mainly used when analyzing comparable sample units as it pairs repeatable observations within a time frame.

Controlled variables are factors that are not tested and remain constant. Some examples of controlled variables are temperature, pressure, volume etc

Item 17 Which symbol represents a salt? C2H2 C6H12O6 KCl O2 Item 17 Which symbol represents a salt? C2H2 C6H12O6 KCl O2

Answers

Answer:

The symbol that represent a salt is CaCl2

Explanation:

The CaCI2 is the calcium chloride that an organic compound now a salt having a chemical formula i.e. CaCI2. Also it is non-color cyrstalline solid at the room temperature also it is highly soluble in the water

Therefore as per the given situation the symbol that represent a salt is CaCI2

This is the answer and the same is not provided in the given options

CAN SOMEBODY PLEASE HELP ME ANSWER THIS CORRECTLY?! (There’s only one option per term, I just really need help and I would appreciate it)

~TERMS~
1. Theory
2. Controlled
3. Variables
4. Hypothesis
5. Independent
6. Quantitative

~DEFINITIONS~
A.) a variable that stays the same during an experiment.
B.) All the things that can be tested and/or observed in an experiment.
C.) An explanation that best explains observable facts, has been well tested and is widely accepted.
D.) describing something using your senses.
E.) summary explaining whether or not the hypothesis was supported by the experimental results.
F.) the variable that changed after doing the experiment.
G.) the variable you choose to test.
H.) Using numbers or amounts to describe something.
I.) your prediction on how the experiment will turn out.

(Answer like 1a or 2b.) (I need answers for all 6 terms) if you help me, thank you like alot

Answers

Answer:

1: C

2: A

3: B

4: I

5: G

6: H

Explanation:

Please don't crucify me if I'm wrong ;-;

Which of the following statements is true about the relationship between atoms and molecules? A. Most atoms are bonded together to make a molecule. B. An atom can be seen by scientists, but a molecule cannot. C. Atoms and molecules are the same and have no differences.​

Answers

Answer:

I believe the answer is A. molecules are larger than atoms so they should be visible and atoms and molecules are indeed different

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. Therefore, the correct option is option A.

What is atom?

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron.  Most atoms are bonded together to make a molecule. Molecules combine to form compounds.

Therefore, the correct option is option A.

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A hydrogen atom absorbs a photon radiation causing an electron to jump from level one to level two. If the photon/radiation has a wavelength of 5.62 x 10^-3 m to calculate the frequency of the radiation absorbed and the energy change of the electron

Answers

Answer:

1.  

First of all, let's convert the energy of the absorbed photon into Joules:

The energy of the photon can be rewritten as:

where

h is the Planck constant

c is the speed of light

is the wavelength of the photon

Re-arranging the formula, we can solve to find the wavelength of the absorbed photon:

2. 1.24 eV

In this case, when the electron jumps from the n=4 level to the n=3 level, emits a photon with wavelength

So the energy of the emitted photon is given by the formula used previously:

and using

we find

converting into electronvolts,

Explanation:

How many electrons does H have with a -1 charge

Answers

Answer:The electron has a negative charge and the proton has a positive charge, and these charges work against each other to make the electromagnetic force that holds the entire atom together.

Explanation:

This is the answer

Given the unbalanced equation: ____ CaSO4 + ___AlCl3 --> ____ Al2(SO4)3 + _____ CaCl2
What is the coefficient of Al2(SO4)3 when the equation is completely balanced using the smallest whole-number coefficients?

Answers

Answer:

3CaSO₄  + 2AlCl₃ →  Al₂(SO₄)₃   +   3CaCl₂

Explanation:

The reaction expression is given as:

        _CaSO₄  + _AlCl₃ →  _Al₂(SO₄)₃   +   _CaCl₂

To balance the reaction above, let us a mathematical approach;

         assign coefficients a, b, c and d to the species;

       aCaSO₄  + bAlCl₃ →  cAl₂(SO₄)₃   +   dCaCl₂

Conserving Ca : a  = d  

                     S:  a = 3c

                     O:  4a  = 12c

                     Al:    b = 2c

                     Cl:   3b = 2d

So;

 let a = 1, d = 1, c   = [tex]\frac{1}{3}[/tex] , b  = [tex]\frac{2}{3}[/tex]  

  Multiply by 3 through;

 a = 3, b  = 2, c  = 1 and d  = 3

  3CaSO₄  + 2AlCl₃ →  Al₂(SO₄)₃   +   3CaCl₂

How many atoms of Oxygen are in 2.35 grams of SO2?

Answers

Answer:

There are 2 atoms of Oxygen (O) present in SO2 therefore it's atomicity is 2

In what ways might the Ring of Fire have
changed in shape and size throughout time?

Answers

Explanation:

this question tion is so hard sorry but I can't do is sorry


What are half-reactions?
O A. Equations showing which elements are oxidized and which are
reduced
O B. Equations showing the electronegativities of atoms in a reaction
O C. Equations showing what compounds are involved in a reaction
O D. Equations showing only the ions involved in a net ionic equation

Answers

Answer:

A

Explanation:

A Equations showing which elements are oxidized and which are

Answer:

A.

Explanation:

Equations showing which elements are oxidized and which are

reduced

what is the concentration of a solution which is 2g in 150cm3 in g/dm3

Answers

The concentration of a solution : 13.3 g/dm³

Further explanation

Given

mass of solution = 2 g

volume = 150 cm³

Required

The concentration

Solution

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

Volume conversion : 150 cm³ = 0.15 dm³

the concentration : mass : volume = 2 g : 0.15 dm³ = 13.3 g/dm³

An element is a specific type of atom (true or false)

Answers

Answer:

True

Explanation:

An element is pure substance that conatin only one type of atom

Answer:

true

Explanation:

the element hydrogen is made from atom

Balance the following chemical equation by providing the correct coefficients.

Na + H2O ———— NaOH+H2
Please help!!!!!!!!

Answers

Answer:

2, 2, 2, and 1

Explanation:

I put that in and it was correct.

The article states that amplitude plays a role in what happens to a sound
wave. Why do you think higher amplitude waves are more often
transmitted while lower amplitude waves are reflected or absorbed?

Answers

Answer:

Sound waves travel through matter

Explanation:

Higher amplitude sound waves are more likely to be transmitted through matter instead of reflected. Lower amplitude sound waves are more likely to be reflected or absorbed, resulting in a lack of an echo. Sound can travel through air, water, and solids

Consider the picture of a gas pump. Which type of gasoline has the highest percentage of octane (the main component of gasoline)?

unleaded: 87 octane rating

mid-grade: 89 octane rating

premium: 91 octane rating

Answers

Answer:

premium: 91 octane rating

Explanation:

Octane number refers to the percentage or volume fraction of isooctane in a fuel.

The octane number gives a picture of how safe a fuel is for an engine. The higher the octane rating the lesser the tendency of the fuel to cause knocking of the engine.

The type of gasoline with the highest percentage of octane among the options is premium.

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