b.__________________ Properties of elements repeat in a regular way as the atomic numbers increase.

Answers

Answer 1
Periodic properties

Related Questions

are these following a basic radical or acid radical?
1. Chlorate
2. Peroxide
3. Silver
4. Zinc
5. Nitrite ​

Answers

Answer:

chlorate=Acid

peroxide=Acid

silver=Acid

zinc= Basic

nitrite=Acid

I think first one is
Chlorate

HELP PLEASE 15 POINTS

The rate law for a reaction is found to be rate = k[X]4. By what factor does the rate increase if [X] is doubled?

Answers

X is doubled by 5 and xk is in the fa

Assertion (A): An orbital cannot have more than two electrons, moreover, if an orbital has two electrons they must have opposite spins.
Reason (R): No two electrons in an atom can have the same set of all the four quantum
numbers.
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true but R is false.
d) Both A and R are false.
pls answer

Answers

Answer:

the correct answer is option ( A )

Both A and R are true and R is the correct explanation of A.

Explanation:

hope it helps you

Mark my answer as brainlist

have a nice day

explain why crude oil is a fossil fuel​

Answers

They were formed from fossils

Name one diatomic compound which is mononuclei​

Answers

Answer:

Common diatomic molecules include hydrogen (H2), nitrogen (N2), oxygen (O2), and carbon monoxide (CO). Seven elements exist as homonuclear diatomic molecules at room temperature: H2, N2, O2, F2, Cl2, Br2, and I2. The bond in a homonuclear diatomic molecule is non-polar due to the electronegativity difference of zero.

state the modern periodic law​

Answers

Answer:

The modern periodic law states that the physical and chemical properties of the elements are the periodic function of the atomic numbers and electronic configurations. ... This repetition occurs if the arrangement of the elements is in order of their increasing atomic numbers.

que chest pain
These may be signs of a serious condition. See your doctor
Ask a doctor before use if you have:
had heartburn over 3 months. This may be a sign of a more serious condition.
sfregent wheezina, particularly with heartbum
unexplained weight loss
Bea or vomiting
stomach pain
Ask a doctor or pharmacist before use if you are taking a prescription drug Acid reducers
may utteract with certain prescription drugs.
Stop use and ask a doctor it:
your heartburn continues or worsens
you need to take this product for more than 14 days
you need to take more than 1 course of treatment every 4 months
w you got diarrhea
you develop a rash or joint pain
I pregnant or breast-teeding, ask a health professional before uso.
Koop out of reach of children. In case of overdose, get medical help or contact a Poison
Control Center night away (1-800-222-1222).

Answers

Answer:

.........................okay?

Oh rip jdjdunejdnjdjehdbhxdhhdhdhhdhdhdhdd

What name is given to a metal when it forms an ion, and what type of charge does it have?

Answers

Answer:

Cation metal. Positive charge.

Answer:

DHS has been working hard for years and it is still unclear whether this would happen if it is to end the market with the engine is a little less than the next 5years to be 8years in the first quarter and the same year in a quarter or less than a quarter or more than that

PLS GUYS ITS FOR 10TH GRADE CHEM

Answers

Answer:

1. 2.63x10^6

2. 39.2

Both answers have been rounded

what are the defects of mendeleev's periodic table​

Answers

Answer:

1 Anomalous Pairs. The rest of the  pairs of elements don't follow the follow Mendeleev's Principles . they are :

2Grouping of chemically dissimilar elements.  

3Position of Isotopes.  

4Electronic arrangement.  

5Separation of chemically similar elements.  

6The position of hydrogen.

What is the aim of cleaning of the iron nails before doing the experiment?

Answers

I don’t know I need the points sorry

What is the chemical formula for carbon tetrafluoride?
The Periodic Table
1
mono-
2
di-
3
4
tetra-
5
penta-
hexa-
6
7
hepta-
8
Oct-
9
nano-
10
deca-

Answers

the chemical formula for carbon tetrafluoride is CF4 because carbon has a charge of -4 and fluorine has a charge of -1 so to balance the ions, you must balance the charges.

what are the main tybes of mixture​

Answers

Answer:

salt and oil

water and salt

water and sugar

Explanation:

The process of diffusion can be described as: Movement of water from the area of high concentration of solute to the area of low concentration of solute. Movement of solute from the area of low concentration of solute to the area of high concentration of solute. Movement of water from the area of low concentration of solute to the area of high concentration of solute. Movement of solute from the area of high concentration of solute to the area of low concentration of solute.

Answers

Answer:

Movement of water from the area of high concentration of solute to the area of low concentration of solute.

Explanation:

Diffusion can be defined as the movement of gas molecules from a region of high concentration to a region of lower concentration until an equilibrium is attained or reached. This mixing of gas molecules in the liquid or gaseous state is due to their kinetic energy of random motion i.e without requiring bulk motion.

This ultimately implies that, diffusion is a phenomenon through which gas molecules in either a gaseous or liquid state spread out in response to a concentration gradient, which is simply the difference in concentration of the gases across a space.

During diffusion, molecules move from areas of high concentration to areas of low concentration. Also, diffusion does not require energy to move molecules.

Hence, the process of diffusion can be described as movement of water from the area of high concentration of solute to the area of low concentration of solute.

A solute can be defined as a substance that is typically dissolved in a liquid solvent such as water, coffee, tea, etc., to produce a solution.

PLZ HELP ME WITH MY WORK
How many different elements are there in the molecule C8H11NO2,?
A. 21
B. 2
c. 11
D. 4 ​

Answers

Answer:

option C 11

is the correct answer

Sodium is dissolved under kerosene oil or paroffin to protect it from the air. 3) State. Huckle's rule for aromaticity with example. How does benzene react with Chlorine in presense of Sun light​

Answers

Answer:

His rule states that if a cyclic, planar molecule has 4n+2 π electrons

Matty told Harriet that, later that same day, he was going to try to convince her to change her attitude toward the nutritional merits of doughnuts. Based on research findings regarding persuasion, how effective is Matty's strategy?

Answers

Answer:

The correct answer is - not very effective; forewarning tends to reduce the effectiveness of an attitude change

Explanation:

The strategy of forewarning or warning before attempting any change in the psychology of an individual is found to be less effective. The subject sees a  forewarning seen as a warning that a person is going to attempt to make changes in the attitude of a person about a particular thing or situation.

As a result, the person is ready to defenses up with regard to that idea of persuasion which Builds up defenses for the situation. Therefore, the effect of persuasion is reduced on the person.

Thus, Matty's strategy is not very effective; forewarning tends to reduce the effectiveness of an attitude change

(answered on edge)
Calculate the percent by mass of each element.

%N = 35 %

%H = 5.0 %

%O = 60 %

Answers

Answer:

N=35%. so 35/100*7 =2.45%

H=5.0 so 5/100*1=0.05%

o=60% so 60/100*8=4.8%

Please help
I need answers now

Answers

Answer:

this is my answer.........

Which statement describes a condensation reaction?

A. monomers break away when one forms a double bond monomers break away with the addition of a water molecule.
B. Two monomers combine when one adds to the double bond of another.
C. Two monomers form a new bond with the loss of a water molecule .

Answers

The statement that describes a CONDENSATION reaction is that two monomers form a new bond with the loss of a water molecule . That is option C.

CONDENSATION REACTION involves the combination of two or more molecules(monomers) of water. In  reaction, a new bond is usually formed.

The characteristics of a condensation reaction includes:

formation of complex molecules (combination of two smaller monomers),water is usually given off as by product it requires a catalyst for a complete reaction to occur

A reaction is called a condensation reaction because a small molecule such as water is released as a byproduct.

A typical example of a condensation reaction is the condensation of amino acids to form dipeptide. The  −OH  from the carboxyl group of one amino acid combines with a hydrogen atom from the amine group of the other amino acid to produce water.

Therefore, the statement that describes a CONDENSATION reaction is that two monomers form a new bond with the loss of a water molecule. That is option C

Learn more about condensation here:

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I pls help me this is the question:

define the following terms below​

Answers

Answer:

natural resources: materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain.

renewable resources:  a natural resource that is unlimited or that is naturally replenished rather quickly, such as sunlight or water

non renewable resources: (also called a finite resource) is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption.

The process during which cells of the body harness energy from food consumed by a living organism is ______________________.

Answers

It is called Cellular Respiration

Exploring the Electromagnetic Spectrum
Assemble the electromagnetic spectrum by dragging each piece to the correct place on the wavelength scale.
Visible
10-2
10-7
10
10-9
10
-5
Wavelength (cm)
(PLEASE HELP!!)

Answers

Answer:

See explanation

Explanation:

When dealing with the Electromagnetic Spectrum, one should remember the acronym ROYGBIV. This will apply to visible spectrum but the non-visible spectra can de logically deduced from the sequence. That is ...

   R-Red > O-Orange > Y-Yellow > G-Green > B-Blue > I-Indigo > V-Violet

In relation to the three wave properties; wavelength (λ), frequency (ν) & energy (ΔE) ...

Wavelengths => Long λ                                                                       Short λ

Frequency     => Low  ν                                                                       High ν

Energy           => Low  ΔE                                                                    High ΔE  

Note that all 'L's' are on the 'Left'

On Left => Long wavelengths, Low frequency & Low energy; the 'opposites' are on 'the other end of the list'.

Therefore for other wavelengths outside the visible spectrum set up as follows, start with visible spectrum in the middle and insert the invisible spectra of interest.

                          Long λ <= Visible (R.0.Y.G.B.I.V.) => Short λ

 λ (cm):    10¹            10⁻²          10⁻³  (10⁻⁵- 10⁻⁶)    10⁻⁷       10⁻⁹    (10⁻¹¹ - 10⁻¹³)            

             [radio > microwave > IR   >   visible   >  UV  >  X-Rays > Gamma]

Hope this helps :-)

What's a third reaction? (Chemistry)

Answers

Explanation:

a chemical reaction in which the rate of reaction is proportional to the concentration of each of three reacting molecules


I’m screwed omg i totally forgot I have school today and forgot to do this someone help me rq I’ll brainlist plslsls be awake just make sure you write the word equation for each of the following metal oxidation reactions or if you can, also write a chemical equation below it. idrm bout that but it’ll be really nice if u did.


tried doing it and if ur one of the smart people that can do science unlike me surely u’ll help. ☺️

Answers

Answer:

Zn + O2 = ZnO

Mg + O2 = MgO

Cu + O2 = CuO

Al + O2 = Al2O3

Explanation:

how is electrovalent bond formed ? Describe with an example .​

Answers

Answer:

For example, the bond between the sodium and chlorine atoms in sodium chloride (NaCl) is formed by the transfer of an electron from sodium to chlorine, creating Na + and Cl – ions. ... The electrostatic attraction between these ions provides the bonding in NaCl.

In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point range of 114 to 125 degrees Celsius. The sample is supposed to be acetylsalicyclic acid. What preliminary conclusion(s) can you reach from this one determination

Answers

Answer:

The melting point determination may need improvement- it may not have been done properly, and make sure it was repeated at least once.

Explanation:

Given that we know the actual melting point of pure acetylsalicyclic acid to be 135°, it follows that the process followed to obtain the melting point range of 114 to 125 degrees Celsius must be inaccurate.

Therefore, we can conclude that, the melting point determination may need improvement. It may not have been done properly, and we must make sure it is repeated at least once.

A reaction happens quickest during:
A. The beginning of the reaction
B. It is constant throughout the reaction
C. The end of the reaction
D. The middle of the reaction

Answers

The answer is A
Explanation;
At the start of the reaction, when we first put magnesium in the hydrochloric acid, there is 100% of the magnesium to react with. As a result there will be more successful collisions between the reactant particles. The more successful collisions, the faster the reaction will be.

The reaction is the formation of the product from the reactants. A reaction happens quickest during the beginning of the reaction. Thus, option A is correct.

What are the factors affecting the reaction rate?

The reaction rate is the pace at which the reaction takes place and the breakdown or the combination of the reactants to produce the products. The rate of reaction depends on the concentration of the reactants.

The concentration of the reactants is in direct proportion with the rate as at the beginning of a reaction there is a higher amount of substance present than at the end.

As the reaction proceeds, the reactants get consumed and their concentration decreases. As there is a decrease in concentration the rate of the reaction converting and producing the products also decreases.

Therefore, option. the rate of reaction is fast at the beginning.

Learn more about reaction rate here:

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WHICH STATEMENT BEST REPRESENTS A HYPOTHESIS

Answers

Answer:

D

Explanation:

Hypotheses are educated guesses, and the best answer is the one with an if, as it indicates that it's a guess.

Answer:

letter b should be the answer

En una carrera de atletismo un deportista se muestra agotado sin fuerzas para continuar y decide abandonar la carrera ¿Que alimentos tomo antes de la carrera ?

Answers

Answer:

Los alimentos para evitar la fatiga durante una carrera son alimentos bajos en grasas y altos en carbohidratos, así como alimentos bajos en fibra como pan, mantequilla de maní, plátano, jugo de frutas sin pulpa, y beber hasta aproximadamente 600 ml de líquido aproximadamente 3 horas. antes de la carrera

La comida para comer unos días antes de la carrera incluye carnes magras, arroz, pasta y verduras con contenido de almidón.

Los alimentos que se deben evitar incluyen carne roja, alimentos con alto contenido de grasas saturadas, alimentos fritos, pasteles y salchichas.

Explanation:

Other Questions
According to Rousseau, a nation should be governed byA.separate branches of governmentB.Natural economic lawsC.the General Will or a majority of its people.D.its ruling class. Can someone help me solve this problem pleaseThankyouuuu What type of health screening would this patient most likely receive?Sue is a 45-year-old woman with a family history of breast cancer. Her healthcare professional will most likely recommend that she receive a You are an employee at a fast-food restaurant in charge of the grill. Its busy today, and a lot of orders are coming in fast. In the process of cooking, you drop a hamburger patty on the floor. Your manager is passing by and says Just pick it up and serve it. What would you do? When an organization assigns a new employee a mentor and takes an employee out to lunch to meet other members of the organization during their first week on the job, this would most strongly be an example of: Domain and functionFunction or not a function Creeds and schools in abeyance,Retiring back a while sufficed at what they are, but never forgotten,I harbor for good or bad, I permit to speak at every hazard,Nature without check with original energyQuestionThe last stanza of section 1 begins with the words "Creeds and schools in abeyance." This indicates that the speakerSelect one:a.is setting aside prior learning to express what is natural.b.wants to explore the ideas he or she learned in school.c.was a poor student and remembers nothing from school.d.regrets that he or she no longer believes in God. Pleaase write explanation passed on your answer dont just say a short answer Did the BLM riots/protests of last year bring about real changes or create new problems or both? Explain. I need this to pass summer school CheckWhich three details about the first half of the twentieth century are correct?Women had few jobs available to them besides being a judge or lawyer.Women could not vote until 1950.Women were usually wives and mothers.O O O OO Women could not vote until 1920.Women were not treated as equals. Which of the following pairs lists a substance that can neutralize Ca(OH)2 and the salt that would be produced from the reaction? HCl and CaCl2HClO and CaHClOH2O and Ca(OH)3H3PO4 and Ca(PO3)2 Help me please! Its due in like 10 minutes and Im barely on the 8th question !!! why is it a good idea for a bacterial cell to be abel to use glucose first as an energy source then switch to lactose Which of the following biconditional statements is true? Which statement best describes why the value of the car is a function of the number of years since it was purchased? A. Each car value, y, is associated with exactly one time, t. B. Each time, t, is associated with exactly one car value, y. C. The rate at which the car decreases in value is not constant. D. There is no time, t, at which the value of the car is 0. A rectangle is four times as long as it is wide. If it has an area of 36 square inches, what are its dimension?a. 6 by 6c4 by 9b. 3 by 12d. 4 and 8 Given below are some facts and predicates for some knowledge base (KB). State if the unification for either variable x or y is possible or not. If the unification is possible then show the unified values for variables x and y.a. American (Bob), American (y)b. Enemy (Nono, America), Enemy(x,y)c. Weapon (Missile), soldTo (Missile, y), Weapon (x), soldTo (x, Nono)d. L(x, y), (L(y, x) ^ L(A, B)) two parallel lines are crossed by a transversal. Last year Nancy weighted 37( 5)/(8) pounds. This year she weighed 42.7 pounds. How much did she gain? An economy is employing 2 units of capital, 5 units of raw materials, and 8 units of labour to produce its total output of 640 units. Each unit of capital costs $10, each unit of raw materials, $4, and each unit of labour, $3.92) Refer to the above information. The per unit cost of production in this economy is: A) $1.00. B) $.10. C) $.05. D) $.50. 93) Refer to the above information. If the per unit price of raw materials rises from $4 to $8 and all else remains constant, the per unit cost of production will rise by about: A) 50 percent. B) 30 percent. C) 40 percent. D) 100 percent. 94) Refer to the above information. As a result of the change indicated in the previous question, the aggregate: A) supply curve would shift to the right. B) demand curve would shift to the right. C) demand curve would shift to the left. D) supply curve would shift to the left.