. Arrange the following in order of increasing radius:
a) Mg2+, Na+, Al3+
b) Na+, Al3+ , Mg2+
c) Mg2+ , Al3+ , Na+
d) Al3+ , Mg2+, Na+

Answers

Answer 1

Answer:

d

Explanation:

because nuclear charge ( no. of protons) increases


Related Questions

• 3. You have a rock with a volume of 15cm3 and a mass of 45 g. What is its
density? 3000 kg/m3

Answers

Answer: d=2.165 g/cm3

Explanation:Due to the nature of it being cubed we can calculate such equation with the mass being 45 grams in which we get 2.165 grams per cenimeter cubed

What best describes what the pH number indicates about a solution?
O A. How acidic the solution is
B. What its ionic strength is
O C. How strong the acid is
O D. What the Ka constant is

Answers

Answer:

A. How Acidic the solution is

Explanation: pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.

Answer:

A

Explanation:

The pH of a solution indicates it's acidity or alkalinity. The pH scale is an inverse logarithm that ranges from 0 to 14. Anything below 7.0 (ranging from 0.0 to 6.9) is acidic and anything above 7.0 ( from 7.1 to 14. 0) is basic or alkaline.

MARK AS BRAINLIEST IF USEFUL

Which phrase best describes a period on the periodic table?

a. elements that are in the same group

b. elements that have the same number of electrons

c. a column of elements

d. a row of elements

Answers

Answer:

d. a row of elements

Explanation:

Elements that are in the same group, have same number of electrons and make up a column in a periodic table.

[tex].[/tex]

The phrase which best describes a period on the periodic table is; a row of elements.

The elements in the periodic table are divided into rows and columns. The rows are called the periods while the columns are called the groups.

This means that a period is best described as a row of elements from the foregoing.

Therefore, the correct answer is option D: a row of elements.

Learn more: https://brainly.com/question/11155928

Please help me with this chemistry

Answers

Answer: gasoline, water, sea water, chloroform and mercury so B

Explanation:

what is single and double displacement reaction?

Answers

[tex]{{\boxed{\mathcal{\red{It \: will \: be \: in \: your\: \: text \: book \: see}}}}}[/tex]

Name one real things modles represent

Answers

Answer:

objects or systems

Explanation:

I hope this helps

pls
answer
pls
pls
its ma homework

Answers

Answer:

2 ka A. nitrogen, oxygen, Carbon dioxide

Answer:

no 1 Ans gas

hope it works

2. Your school club sold 600 tickets to a chili supper. The chili recipe for 10 persons
requires 2 teaspoons of chili powder. How many teaspoons of chili powder will you
need altogether?

Answers

You would need 120 teaspoons of chili powder.

Answer:  120 Teaspoons

Explanation:  

TS = Teaspoons; R = Recipe ; S=Servings

(2 TS/R)/(10S/R) = (10S/2TS)

(600S)/(10S/2TS) = 120 TS

What is the functional group of a carboxylic acid?
A. Carbon double bonded to oxygen and a hydroxyl group (OH).
B. Carbon bonded to a hydroxyl group (OH).
C
C. Carbon bonded to a nitrogen group.
D. Carbon double bonded to an oxygen and a hydrogen.

Answers

Answer:

A. Carbon double bonded to oxygen and a hydroxyl group (OH).

Which elements would react most easily with each other? (1 point)

an element with a high electronegativity and an element with a full shell of electrons

an element with a high electronegativity and an element with a single valence electron

an element with a high electronegativity and a second element with a high electronegativity

an element with a high electronegativity and an element with low reactivity

Answers

Answer:  an element with a high electronegativity and an element with a single valence electron  

is the correct answer

_______________________________________________________

Answer:

"Any element with a high electronegativity and an element with a single valence electron would react very easily on contact with each other."

_______________________________________________________

"Why?"

For instance, fluorine is the most reactive non-metal element on the periodic table. Due to it's small size, as well as it's strong electronegativity, fluorine has a strong tendency to accept electrons from other atoms and ions. But when Fluorine comes in contact with Hydrogen (a single valence electron element), for instance, it immediately reacts, resulting in an explosion.

_______________________________________________________

Hope this helps!

Which statement describes a numerical result with good precision?

Answers

Answer:

poop

Explanation:

HOTS

A container made of same metal when exposed to
humid climate develops green coating.
Identify the metal. Give reason for both a & b.

Answers

The metal is copper, because when copper is exposed to the humid climate, a green stuff called patina is formed around the shiny surface of the metal.

5.
Flow chart related to the ionic bond in sodium chloride

Answers

An ionic bond is formed between sodium and chlorine in sodium chloride. The correct flow chart is shown below.

The question is incomplete, the complete question is;

Complete the flow chart related to the ionic bond in sodium chloride-Atomic number,Electronic configuration of atoms,Electronic configuration of ion,Symbol of sodium ion .please help me to find the answer

The flow chart related to the ionic bond in sodium chloride is as follows;

Atomic number of sodium ----> 11Atomic number of chlorine ------> 17Electronic configuration of sodium; 1s2 2s2 2p6 3s1Electronic configuration of chlorine; 1s2 2s2 2p6 3s2 3p5Electronic configuration of sodium ion; 1s2 2s2 2p6Electronic configuration of chlorine ion; 1s2 2s2 2p6 3s2 3p6Symbol of sodium ion; [tex]Na^+[/tex]

Sodium is in group 1 of the periodic table. It contains 11 electrons as shown by its electronic configuration. It forms sodium ion by loss of one electron. Group 1 elements form an univalent positive ion.

Chlorine is in group 17 of the periodic table. It has 17 electrons. It forms chloride ion by gaining one electron leading to the formation of sodium chloride.

Learn more; https://brainly.com/question/11527546

Science

0.00098 I need that converted to the scientific notation I need help quick

Answers

Answer:

9.8×10^-4...... is the answer

what is the empirical formula of compound that is 64,8%,13,6%H and 21,6% O by mass?​

Answers

Please marks me as brainliests..please for my effort..

Explanation:

Calculate the empirical formula. In any empirical formula problem you must first find the mass % of the elements in the compound. ... Then change the % to grams. ... Next, divide all the masses by their respective molar masses. ... Pick the smallest answer of moles and divide all figures by that.

what is the value of gravitation constant on the surface of the moon

Answers

Answer:

The value of gravitational constant on the surface of the moon is 1.625 m/s<sup>2</sup>

What is the Color of trioxonitrate

Answers

Answer:

blue white green and brownn

Explanation:

seen one

What is the change of state in which a gas becomes a liquid?

Answers

Answer:

Condensation

Explanation:

Answer:

Condensation

Explanation:

When a gas changes to a liquid it is known as condensation. It happens when molecules in a gas slowly reduce their movement speed.

HOPE THIS HELPED

Find the density of mercury if 205 mL has a mass of 2790 g; round
your answer to the nearest 0.1 g/mL.

Answers

Answer:

D= m/ V

D = density of mercury , m= mass , V= Volume

D = 2790 / 205

D = 13.6 g/ml

D = 1.36 ×10-¹ g/ml

I hope I helped you^_^

Which of the following describes what a scientist does?
A. A scientist answers ethical questions.
B. A scientist asks questions about the world.
O C. A scientist determines right from wrong.
D. A scientist tells people how they should behave.

Answers

The answer is answer choice B

Answer:

B

Explanation:

What device will you use to determine the volume of a liquid?
O Balance
Metric beaker
O Graduated cylinder
O Flask

Answers

Answer:

graduated cylinder

Graduated cylinder is the correct answer as it is the only apparatus listed above which has markings on it. This will give accurate measurements. Pls mark me brainliest

The graph below shows the changes in the temperature of ice when it is heated from -20 °C to 100 °C.

Heat curve for ice. The graph shows the changes in the temperature of ice when it is heated from negative 20 degrees Celsius to 100 degrees Celsius. The label for the x-axis reads 'Addition of heat over time.' The label for the y-axis reads 'Temperature (degrees Celsius).' There are labels on the graph (from 'A' to 'E') that designate significant events while applying heat to the ice. Portion AB has a slight incline while increasing the heat from negative 20 degrees to 5 degrees; portion BC stays at 5 degrees for a while; portion CD steadily increases in temperature from 5 degrees to 100 degrees over a significant period of time; portion DE stays at 100 degrees for a while.

Based on the graph, which of these conclusions is correct?

Answers

Answer:

D

Explanation:

I did it on a quiz.

I have science exam tomorrow plz guys help meh!!!
Differentiate between : Physical change and chemical change ​

Answers

Answer:

chemical change is a where a variation occurs when several reactants are combined or mixed together.

physical change is a process whereby you gain or lose energy as you cool or heat it.

Explanation:

How many milliliters are there in 1.0 microliter?

Answers

Answer:

0.001

Explanation:

Describe two ways you could model atoms in a substance.

Answers

Answer:

You can model a substance doing a Lewis structure

And also you can model it doing a bond-line structure.

what is potential energy

Answers

Answer:

The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

so simple question.

Answer:

Potential energy is stored energy that an object has because of its position.

Explanation:

Consider an example where a ball is thrown from a tall building. The point at which the ball is at its maximum height is said to have the maximum potential energy. As the ball gradually falls down, the potential energy decreases and turns into another form of energy, kinetic energy (energy in the form of motion). The ball at its peak position had stored energy, however, as soon as it begins moving, the stored energy will become less.  

You can think of it this way where the ball has less and less distance to cover when falling downwards from the building. This shorter distance covered by the ball is proportional to the potential energy, so when the ball is about to hit the ground, the potential energy will be close to 0.

I hope this makes more sense!

what sound is produced when lithium react with water?

Answers

Answer:

lithium reacts with water, forming lithium hydroxide and highly flammable hydrogen

What is the density of water (in g/mL) to fouf significant figures at 6°C?

Answers

Answer :

0.9999432 g/cm^3

The density of water in g/ml up to 4 significant figures at 6°C is 0.9999432 g/cm³.

What are significant figures?

Significant figures are used for establishment  of a number which is presented in the form of digits. These digits give a meaningful representation  to the numbers.

The significant figures are the significant digits which convey the meaning according to the accuracy. These provide precision to the numbers and hence are called as significant numbers.There are rules for counting significant figures which are as follows:

1)All non-zero digits are significant .

2)All zeroes which occur between non-zero digits are significant.

3)All zeroes to the left and right of  a non-zero digit are not significant.

4) All zeroes on right  of decimal are significant if a non-zero number follows them.

5)All zeroes on right side of non-zero digit are significant

Learn more about significant figures,here:

https://brainly.com/question/29153641

#SPJ2

Come up with 2 examples of derived units from everyday life.

Answers

Answer:

answer

Explanation:

Area : Square Meters,

Volume : Cubic Meters,

Density : Kilograms per Meter Cube,

Velocity : Meters per Second Squared,

Force : Newtons (Mass multiplied by Acceleration or Mass multiplied by Displacement divided by Time squared)…..

777 Joules of energy are applied to 25.0 grams of each of the following materials, which
will change temperature the most?
iron, glass, aluminum, copper, gold

Answers

Answer:

I think copper

Explanation:

Material IACS % Conductivity

Silver                105

Copper            100

Gold               70

Aluminum         61

Nickel              22

Zinc                          27

Brass                  28

Iron                        17

Tin                      15

Phosphor Bronze  15

Lead                      7

Nickel Aluminum Bronze 7

Steel                   3 to 15

the table might help- your indian brother

Other Questions
Given IQ scores are approximately normally distributed with a mean of 100 and a standard deviation of 15 , the proportion of people with s above 130 is: Resolva a inequao (x + 4)(x 4) < 0. 3. The xylem and phloem arranged side by side on same radius is called a) radial b) amphivasal c) conjoint d) None of these 4. Which is formed during anaerobic respiration a) Carbohydrate b) Ethyl alcohol b) Acetyl Coa d) Pyruvate 10th Standard Science 184 during the movie fundraising event the concession stand at the auditorium sells popcorn fruit and drinks the price of a box of popcorn is 0.50 more than 7. A friend who eats an entire pizza in ten minutes and then forces himself to vomit may have an eating disordercalledanorexia nervosa.b. depressionc schizophrenia.d. bulimia. can someone please help asap Helpppppppppppppppppppp thank you Guys I need your help please How is economics a science? DUE RN CAN SOMEBODY PLZ HELPP MEEE I kinda need help with this How were the Mauryan and Gupta Empires different? can a poultry bird lay more that one egg in a day multipling vectorswhat's the answer of this a= 3cm, 90b=4cm, 0AB vector=?? 1. If you want to generate ideas fromyour own experiences, what shouldyou do?O A. Simply remember yourexperiences as best as you can.O B. Interview your friends and familyto find out what they think about you.C. Make detailed writtenobservations of your experiences.O D. Research your topic at a libraryto find out what experts have to say. an acute angle is an angle which is_______ 7. Is 5.787787778... a rational or irrational number?Explain. what are fundamental and derived unit Please help!!!!!!!!!!! find the value of x and y