Which atom is abundant in the universe​

Answers

Answer 1

Answer:

hydrogen is abundant in nature


Related Questions

Identify the group number and generic outer electron configuration for a neutral main‑group element with the following two Lewis dot symbols.

X with 1 dot on the top, bottom and right

X with 1 dot on all sides

Answers

Answer: Answer to #1 is 3A and ns2np1

Answer to #2 is 4A and ns2np2

Explanation:Group number is the number of valance electrons and generic outer electron configuration has to add up to equal the number of valance electrons

The element in the first diagram is in group 13 while the element in the second diagram is in group 14.

The Lewis structure of an atom of an element is a representation of the number of valence electrons on the outermost shell of the atom of that element. Every group of elements have a generic electron configuration which represents the number of valence electrons contained by atoms of elements in that group.

In the first diagram, the element X belongs to group 3A(13) and has a generic outer electron configuration, ns2np1. In the second diagram, the element X is in group 4A(14) and has outer electron configuration ns2np2.

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what is the percentage composition of water in crystallization of oxalic acid

Answers

Answer:

5.17 percentage is water

Explanation:

answer from gauth math

Which of the following is an example of a solution?

A. An iron alloy
B. Iron metal
C. Iron rust
D. An iron ore

Answers

Answer:

A: an iron alloy.

Explanation:

Because iron alloy consists of minor components that are distributed within the major component, which is the basic requirement for a solution.

How is a slump different from creep?

Answers

Answer:

Is this chemistry or ELA!

formula for finding speed using binding energy and mass​

Answers

Answer:

The formula for finding speed using binding energy and mass is E=mc2.

An atom with 6 protons and 8 neutrons is an)

Answers

Answer: carbon (C)

Explanation:

What are the differences between molecule of an elements and molecules of a compound?​

Answers

a compound is a pure substance made up of two or more elements chemically combined a molecule is defined as the smallest particle of an element which can exist separately elements are pure substances which can not be split into simple substances by chemical means the atom is defined as the smallest particle of an element which can take part in a chemical change so I think the difference between the molecule of a compound is bigger than the molecule of a compound

Convert the following absolute temperatures to centigrade.
i) 0 K
ii) 298 K
iii) 323 K
iv) 423 K

SHOW STEP BY STEP

Answers

Answer:

0 K

[tex]{ - \bf{273 \degree C}}[/tex]

298 K

[tex]{ \tt{ = 298 - 273}} \\ = { \bf{25 \degree C }}[/tex]

323 K

[tex]{ \tt{ = 323 - 273}} \\ = { \bf{50 \degree C}}[/tex]

423 K

[tex]{ \tt{ = 423 - 273}} \\ = { \bf{150 \degree C}}[/tex]

1.T=[£+273]

=273

It is because kelvin temperature is absolute zero.

Specific heat capacity is _____.


greater for metal than for wood

the amount of heat required to raise the temperature of 1g of a substance 1 oC

represented by the symbol, Q

all of these

Answers

Answer:

all of this

Explanation:

- calculate relative formula mass
[N=14, O=16, Mg=24, Al=27]

1) Mg(NO3)2

- calculate relative molecular mass
[H=1, C=12, O=16]

1) C4H10

2) CH3COOH​

Answers

Mg(NO3)2:-

[tex] \\ \sf \longmapsto \: 24u+2(14u+3\times 16u)[/tex]

[tex] \\ \sf \longmapsto \: 24u+2(14u+48u)[/tex]

[tex]\\ \sf \longmapsto \: 24u+2(62u)[/tex]

[tex] \\ \sf \longmapsto \: 24u+(124u)[/tex]

[tex] \\ \sf \longmapsto \: 148u[/tex]

Một hỗn hợp X gồm CH3OH; C2H5OH; phenol có khối lượng 28,9 gam phản ứng vừa hết với 100ml dung dịch NaOH 2M. Phần trăm theo khối lượng phenol là ? Biết C = 12; O = 16; H = 1; Na = 23. *

Answers

Answer: bạn viết phương trình Phenol + NaOH

=> nNaOH = nPhenol = 0,2 mol

m Phenol = 0,2x94 = 18,8 gam

%mPhenol = 18,8/28,9% = 65,05

Explanation:

Question 5
1.00 g of He, 14.0g F2, and 19.0 g Ar are placed in a 13.0-L container at 20.0 °C.

The total pressure (in atm) in the container is _____ atm.

1 point

Answers

Answer:

2.03 atm

Explanation:

Number of moles of He = 1g/4g/mol = 0.25 moles

Number of moles of F2 = 14.0g/38 g/mol = 0.37 moles

Number of moles of Ar=19.0g/40g/mol = 0.48 moles

Total number of moles = 0.25 + 0.37 + 0.48 = 1.1 moles

From;

PV=nRT

P= pressure of the gas mixture

V= volume of the gas mixture

n= total number of moles of the gas mixture

R= gas constant

T= temperature of the gas mixture

P= nRT/V

P= 1.1 × 0.082 × 293/13

P= 2.03 atm

what is the name of the organic molecule

Answers

Explanation:

Although carbon is present in all organic compounds, other elements such as hydrogen ( H), oxygen ( O), nitrogen ( N), sulfur ( S) and phosphorus ( P) are also common in these molecules. An organic molecule is a molecule that contains carbon atoms (generally bonded to other carbon atoms as well as hydrogen atoms)

What is the oxidation state of fluorine (F)?
The Periodic Table
A.-2
B. +1
C. -1
D. +2

Answers

Answer:

It is C. -1

Explanation:

[tex] { \underline{ \sf{ \blue{christ \: † \: alone}}}}[/tex]

5. The energy diagram shown illustrates a reaction which is
an
A. exothermic reaction.
B. activated complex.
C. equilibrium reaction.
D. endothermic reaction.

Answers

Answer:

Explanation:

The answer is an exothermic reaction so A.

The world is made up of ​

Answers

Answer:

Explanation:

           The world is made up of ​living beings .    

write any two conditions at which a body of certain mass weightless​

Answers

Answer:

A body becomes weightless in a zero-gravity scenario and when a force is applied to a body that is equal and opposite to the force of gravity. If the body is falling only under the influence of gravity.

Answer:

A body becomes weightless in a zero-gravity scenario and when a force is applied to a body that is equal and opposite to the force of gravity.If the body is falling only under the influence of gravity.

In the figure a cyclist moves A to B and then to C.he could also go through the shortest path AC. Depending on this fact solve the following questions: Find the length of AC .Find the displacement and total distance covered.​

Answers

Answer:

hope it helps you see the attachment for further information

How long can crater fires burn?

Answers

Answer:

I would have to say More than 40 years

Which of the following elements is the smallest?

Answers

Explanation:

where is options?????????????????

Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. Wikipedia
Symbol: He
Atomic mass: 4.002602 u
Atomic number: 2
Electron configuration: 1s2
Electrons per shell: 2
Boiling point: -268.9 °C

You work in the special effects department of a movie studio. You are currently working on a superhero movie where the hero is very strong and cannot be hurt by normal weapons such as a sword. In the next scene, the villain is going to hit the hero with a lead pipe. The hero's costume is mostly made of foam and carbon so that is it very light and easy to move around in but will crumble if hit with anything hard. For this scene, a section of the costume needs to be replaced with a different material that will only dent, not crumble, when hit with the pipe. You are on a deadline and look around the props department for ideas, what could you use?

Answers

Answer:

Aluminum or Galvanized iron

Explanation:

If the costume has to be such that the hero does not get hurt when hit by a lead rod and also is easy for the mobility then the suitable option for the costume could be Aluminum material which will only dent and not crumble.

Galvanized iron could be another choice being harder and stronger as compared to aluminum but a little heavy. It can sustain heavy impacts as compared to aluminum.

Answer:

You could use a shield if you are not speaking from a scientific way.

can you answer with working out ​

Answers

This is your answer I hope it is right.

Explain Froath Flotation Method!

Answers

Explanation:

a process for separating minerals from gangue by taking advantage of the differences in their hydrophobicity.

I believe that is accurate

hope this helped have a nice day

and mark me brainiest :)

PLZ HELP Question 2 of 25 What is the total number of atoms in the molecule CzHg?
A. 2
B. 8
C. 11
D. 3​

Answers

A. 2

One Cs (Caesium), the other one Hg (Mercury)

Note: we don't have Cz this might be Cs

the text of oxygen gas in the laboratory ​

Answers

Explanation:in testing for oxygen a glowing splint is used.

the glowing splint is brought in the presence of the test tube containing the gas

the glowing splint rekindles or lights up showing that oxygen is present.

this is a positive test because oxygen supports burning or combustion

PLZ HELP Matthew wants to study how the body responds when the skin is broken. He learns that particles in the blood clump together at the site of the wound to stop the bleeding while the skin heals. Which of the following body systems is involved in carrying the blood to the site of the wound?
A. Cardiovascular
B. Skeletal
C. Respiratory
D. Muscular​

Answers

Answer:

A, Cardiovascular system

cardiovascular system

How much water will the measuring cup have if you poured 1/2 of it out?

Answers

The cup will be filled up halfway

QUICK PLEASE!!!

Argon is an element in the last column of the periodic table. What is its highest energy sublevel?
A.D
OB.
OC.P
DS

Answers

The highest energy sublevel of argon will be p.

Argon

Argon has an atomic number of 18.

Thus, the electron configuration of argon will be [tex]1s^2, 2 s^2, 2 p^6, 3 s^2, 3 p^6[/tex]

The ascending order of energy for the sublevel orbitals is s, p, d, and f.

Therefore, the highest energy sublevel of argon is p.

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The highest energy sublevel in the element argon is p.

What is the periodic table?

The periodic table is an arrangement of atoms according to their order of increasing atomic numbers. Now we know that there are 18 groups in the periodic table and argon belongs to group 18.

The electron configuration of argon is; 1s2 2s2 2p6 3s2 3p6. Thus, the highest energy sublevel in the element argon is p.

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Describe what happens to the particles when a substance:

1. Melts

2. Freezes

3. Boils

4. Condenses

Answers

Particles vibrate when frozen when it boils it moves like you had 4 monsters in the morning
1. It will melt.
2. It will freeze.
3. It will evaporation.
4. It will freeze.

Determine the mass of 6.33 mol of iron(II) nitrate.

Answers

Answer:

1822.72 g

Explanation:

Applying,

n = R.M/M.M.................. Equation 1

Where n = number of moles of iron(II) nitrate, R.M = Reacting mass of iron(II) nitrate, M.M = molar mass of Iron(II) nitrate.

Make R.M the subject of the equation

R.M = n×M.M............. Equation 2

From the question,

Given: n = 6.33 mol

Constant: M.M of iron(II) nitrate = 287.95 g/mol

Substitute these values into equation 2

R.M = 6.33(287.95)

R.M = 1822.72 g

Hence the mass of iron(II) nitrate is 1822.72 g

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Most naturally occurring oxygen (O) isA. oxygen-18B. oxygen-15C. oxygen-17D. oxygen-16 Ahmed is making 8 kites. He uses 5 yards of ribbon for each kite. If he adds 3 more identical kites which he has already made before, how many kites will Ahmed have in toTal Plz help me find zero x on the triangle and show work thanks Four roommates are planning to spend the weekend in their dorm room watching old movies, and they are debating how many to watch. Here is their willingness to pay for each film: Willingness to Pay (Dollars) Van Carlos Felix Larry First film 10 9 6 3 Second film 9 7 4 2 Third film 8 5 2 1 Fourth film 7 3 0 0 Fifth film 6 1 0 0 Within the dorm room, the showing of a movie____a public good. If it costs $8 to rent a movie, the roommates should rent____movies in order to maximize the total surplus. Suppose the roommates choose to rent the optimal number of movies you just indicated and then split the cost of renting equally This means that each roommate will pay____. Complete the following table with each roommate's total willingness to pay for this many movies and the surplus each person obtains from watching the movies. Total Willingness to Pay Consumer SurplusRoommate (Dollars) (Dollars) Carlos Felix Larry Raphael In order to split the cost in a way that ensures that everyone benefits, the cost could be divided up based on the benefits each roommate receives. The practical problem with this solution is that each roommates has an incentive to____the value of the movies to him. Suppose they agree in advance to choose the efficient number and to split the cost of the movies equally. What did the national womens association and the american womens association disagree on? What Supreme Court case eliminated the spending caps on: Overall Campaign Spending, Candidate Personal Spending, and Independet Expenditures?a) FEC v. Davisb) Citizens United v. FECc) Buckely v. Valeod) Wisconsin Right to Life v. FEC what will happen if people exercise their rights and ignore their duties A particle makes 800 revolution in 4 minutes of a circle of 5cm. find i. It's period ii. Angular Velocity iii. Linear Velocity iv. It's acceleration please with the formula stated clearly and the meaning of the symbols with accurate solutions you can snap and send it THANK YOU What is one of thereasons accents are used in theSpanish language?A. To distinguish Spanish from other languages.B. To distinguish different tenses.C. To distinguish masculine and feminine words which electromagnetic wave has the highest frequency The genes of the ath operon are expressed only when the concentration of athelose in the bacterium is high. When glucose is absent, the bacterium needs to metabolize athelose as an energy source as much as possible. The same catabolite activator protein (CAP) involved with the lac operon interacts with the ath operon. Based on this information, how is the ath operon most likely controlled Scenario: Kenneth and Catherine Lohmann of the University of North Carolina explored the orientation or direction-finding abilities of loggerhead sea turtle hatchlings under varying magnetic conditions. Hatchlings were placed in a tank of water in a laboratory either in the natural magnetic field of the earth OR in a reversed magnetic field in which north and south were flipped. The researchers then measured the direction that the hatchlings swam. The experiments were carried out in the dark and at night since that is when most newly hatched turtles migrate from their sandy nests into the ocean. What is the variable being tested in this experiment Show that the acceleration is 7.5 m/s2 for a ball that starts from rest and rolls down a ramp andgains a speed of 30 m/s in 4 s. HELP-A line is 2 units long. If you draw a line that is twice the size, how long will it be? A. 1 unit long B. 2 units long C. 3 units longD. 4 units long An electrolysis reaction isA) exothermic.B) hydrophobic.C) spontaneous.D) non-spontaneous. Are individual human rights victories less important or significant than victories that are won by large groups? (paragraph) Select the item that best represents technology transfer?Newtonian telescopeMagnetic CompassPrinting Press How does Heinz feel after telling his co-worker Harry about his sons birth? Which set of angles listed are supplementary In a desert ecosystem a species of herbivores died out because the organisms developed a disease. a few months later a larger carnivores species also experience a population decline that was directly related to the change in the herbivore population, whats the most likely cause for this declined?A. The carnivores and the herbivores competed for the same food supplyB. The carnivores prayed on the herbivores foodC. The carnivores depended on the herbivores for living spaceD. The carnivores and herbivores competed for the same mates