which of the following is most acidic oxide?
a.Na2O
b.Al2O3
c.P2O5
d.SO3
And why it is most acidic oxide?

Answers

Answer 1

-i effect required here

Let's see which oxide shows more -i effect

Na-Group 1 Al-Group 15P-Group 15S -Group 16

P lies below Al

And -i effect increases down the group so acidity increases

P_2O_5 is more acidic

Related Questions

Why did me need to have the same molecules in each bottle? and what would have happened if we didn't use the same molecules?


Background info: We learned about molecules and how when a object is heated the air becomes less dense and the molecules is the opposite since they don't spread out and become more dense. What I mean with this question is in class we experimented by putting a bubble on a bottle and putting it on a hot water, the water made the molecules inside less dense and the bubble went up but when we tried cold water the bubble went down.

Answers

Answer:

it's just like doing a test grade on children if you give them different tests they might not come up with the same results, the molecules need to be the same or else the experiment will be even.

Explanation:

whenever water is hot the molecules will bounce really fast in the bottle, whenever water is cold he will go really slow in the bottle

Help me please! I’m
In my own breakout room doing this like the other kids NOW HELP!

Answers

Answer:

Sun

Explanation:

Answer:

earth

Explanation:

Which element would have the greater difference between the first ionization energy and the second ionization energy

Answers

Answer:

Lithium has the greatest difference between its first and second ionization energies.

According to the following map, what is a type of mineral found in Mexico?

a | Bauxite

b | Copper

c | Gold

d | Zinc​

Answers

Answer:

B) copper

Explanation:

According to the map, iron, silver, and copper are found in Mexico. That makes B) copper your answer, as it is the only one that shows up for both the answer choices as well as the map.

A sample of SO2 gas occupies 45.6 L at 373 K and 3.45 atm. How many moles of oxygen atoms?

Answers

Answer:

10.3

Explanation: i have this as a assignment rn sooo here you go :)

How many protons,neutrons and electrons make a hydrogen atom

Answers

Explanation:

A hydrogen atom has an atomic number of 1.

So it's proton number will always be 1.

A neutral hydrogen atom does not have any charge.

So it has the same amount of electrons as protons, which turns out to be also 1.

A neutral hydrogen atom has an atomic mass of ≈1.00794amu≈1amu.

To find the amount of neutrons, we take the proton number and subtract it from the mass number.

1−1=0

So a neutral hydrogen atom has no neutrons.

In summary,

A hydrogen atom has

1 proton

1 electron

0 neutrons

another way of explaining:

The number of protons is the atomic number, and the number of protons plus neutrons is the atomic mass. For hydrogen, the atomic mass is 1 because there is one proton and no neutrons. For helium, it is 4: two protons and two neutrons

A student group is involved in a restoration study of a nearby disturbed area. They decide to collect six soil samples and analyze them for carbon (C) and nitrogen (N). Two of the samples are found to be very high in C and N, but the other four samples are low in both. The students also notice that the color of the two soil samples that are high in C and N is very dark.

Requried:
What is the most likely explanation of the data?

Answers

The very dark soils samples that contain the highest amounts of carbon and nitrogen is loamy soil.

Soil is the outermost portion of the earth's crust on which plants grow. The appearance of a soil sample gives an idea of the type and nature of the soil it is.

We are told that two out of the six soil samples gathered are very dark and contains an enormous amount of carbon and nitrogen. These two must be samples of loamy soil.

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What does the number 84 in the name krypton-84 represent?
the atomic number
the mass number

Answers

Answer:

The Atomic number

Explanation:

Mark brainliest please

How many grams of solute are needed to order to prepare 100.00 mL of a 0.1000 M solution of a compound with a molecular weight of 350.0 g/mol

Answers

Answer:

i got 35 but i am as lost as you are so don't really take my answer as a trusted answer

The grams of solute are required.

The mass of solute is 3.5 g

c =  Molarity = 0.1 M

M = Molar mass = 350 g/mol

V = Volume of solution = 100 mL = 0.1 L

n = Number of moles

m = Mass of solute

Molarity is given by

[tex]c=\dfrac{n}{V}\\\Rightarrow n=cV\\\Rightarrow n=0.1\times 0.1\\\Rightarrow n=0.01\ \text{moles}[/tex]

Molar mass is given by

[tex]M=\dfrac{m}{n}\\\Rightarrow m=Mn\\\Rightarrow m=350\times 0.01\\\Rightarrow m=3.5\ \text{g}[/tex]

The mass of solute is 3.5 g

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Calculate the mass of iron formed when 299g of iron (ii) oxide is reduced by excess carbon monoxide

Answers

Answer:

Mass = 88.12 g

Explanation:

Given data:

Mass of iron oxide = 126 g

Mass of iron formed = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO    →      2Fe + 3CO₂

Number of moles of iron oxide:

Number of moles = mass/molar mass

Number of moles = 126 g/ 159.69 g/mol

Number of moles = 0.789 mol

Now we will compare the moles of iron with iron oxide.

                     Fe₂O₃           :             Fe

                        1                 :               2

                  0.789              :            2/1×0.789 = 1.578 mol

Mass of iron:

Mass = number of moles ×molar mass

Mass = 1.578 mol × 55.84 g/mol

Mass = 88.12 g

Imagine you are an astronaut and you travel to a planet with a much larger mass than Earth. How would this affect your weight? Explain your answer. (4 points)

Answers

Answer:

Explanation:

It may not make any difference. The information missing is the radius of the planet.

However for the purposes of the question, let us assume that it is roughly the same diameter of the earth. Then the weight of anyone would increase if the mass is all that changes..

The formula governing your weight is F = G * m1 *m2 / r^2. If m1 is the mass of the planet and it increases a lot then m2 (you) should increase.  The question is done by a proportion.

help me please????? ​

Answers

It’s rise and cool because when they heat up, the expand and when they cool down, they fall down.

please help me with this question as it's really important ​

Answers

Answer:

(i)

A → CH3CH2CH3 ( Propane )

B → CH3CH(Cl)CH3 ( 2-Chloropropane )

C → No product

D→ CH3CH=CH2 ( 2-propene )

E → CH3CH2COOH ( Propanoic acid )

(ii)

Reagent X → Acidified water [ H+ / H2O ]

Reagent Y → Bromine with Carbon tetrachloride [ Br2 / CCl4 ]

Reagent Z → Sodium hydroxide [NaOH]

An experiment was set up so that each test tube contained water at a pH of 6.3 and a pH indicator. Test tubes 1 and 2 also contained a common pond autotroph. Carbon dioxide dissolves in water and forms carbonic acid. After three days the four test tubes were found to have these results.What conclusion can be drawn from test tube 1 and test tube 2

Answers

Answer:

I think there was a picture with the results that you need to attach but regardless we need the results.

Explanation:

A 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at 2 1.2 m/s , which
force is closest to the net force acting on the vehicle?
F 9,600 N
G 1,300 N
H 900 N
J 94 N

Answers

G. ………………………. . Z z… z z z z z z z z

An unknown substance was put in a container. The substance filled up the container from bottom up, taking half of the space in the container.

What is most likely the state of matter of the substance?

Gas
Liquid
Plasma
Solid​

Answers

According to the forces of attraction, the most likely state of matter of the substance mentioned is liquid.

What is matter?

Matter in chemistry, is defined as any kind of substance that has mass and occupies space that means it has volume .Matter is composed up of atoms which may or not be of same type.

Atoms are further made up of sub atomic particles which are the protons ,neutrons and the electrons .The matter can exist in various states such as solids, liquids and gases depending on the conditions of temperature and pressure.

The states of matter are inter convertible into each other by changing the parameters of temperature and pressure.According to law of conservation of matter , matter can neither be created nor destroyed only its state changes .

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Answer:

liquid

Explanation: liquid conforms to the shape of the container which it is held in.

Which statements accurately describe elements? Check all that apply.

Elements are made up of two or more types of atoms.
Elements are made up of only one type of atom.
Each element has a unique chemical symbol.
Elements can be identified by their atomic number.
One element cannot be combined with another element.

Answers

Answer:

Elements are made up of only one type of atom. Each element has a unique chemical symbol. Elements can be identified by their atomic number.

Explanation:

a stone is projected horizontally with 20 metre per second from the top of a tall building calculate its position in velocity after 3 seconds neglecting the air resistance .​

Answers

Answer:

105m

Explanation:

u=20m/s

g=10m/s^2

t=3s

s=ut+1/2gt^2at

s=20*3+1/2*10*3*3

s=105m


What allows us see the color green?
A
The green wavelength is absorbed.
B
The green wavelength is reflected.
C
All colors but green are reflected back.
D
The green wavelength vibrates the air particles.

Answers

Answer:

When (B) the green wavelength is reflected, we are able to see green.

I hope this helped at all.

In an electromagnetic spectrum, complimentary colors are absorbed and reflected , the color which is visible is the reflected color, hence the green wavelength is reflected which enables to see the color green.

What is electromagnetic spectrum?

The electromagnetic spectrum consists of electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.

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27/13Al how many electron does one atome of this element contain​

Answers

Answer:

An aluminium atom contains 13 electrons.

1. A box of hardware contains 100 pieces. Assuming there are 25 pieces in each vial, calculate the
mass of a box of each kind of hardware. Express these values in units of g/box

Answers

Answer:

fofo you for your patience and

The question is incomplete.

Following things are required to solve the question:-

Mass of the vileMass of the pieces

Without the information we can not solve the question. Therefore, please provide with the incomplete information.

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https://brainly.com/question/2817451

what is the name of an orchestra that performs the ceremonial music of the royal courts and templates of cambodia
a.ankor wat
b.oneat
c.pinpeat
d.samphor​

Answers

Answer:

pinpeat

According to 3 sources

The pinpeat (ពិណពាទ្យ) orchestra or musical ensemble performs the ceremonial music of the royal courts and temples of Cambodia. The orchestra consists of approximately nine or ten instruments, mainly wind and percussion (including several varieties of xylophone and drums)

Explanation:

PA BRAINLIEST

What type of rays result in shorter days? (science)

Answers

Answer:

verical rays

Explanation:

The rays result in shorter days are the vertical rays.

What are vertical rays ?

Vertical rays are another name for direct rays. Rays that are straight overhead are referred to as vertical. Because the Earth is spherical, not all the Sun's rays hit it directly or vertically.

Vertical rays lose less heat because they cover a shorter distance. Slanted rays cover more ground and dissipate more heat. Sun's vertical rays fall between the Tropics of Cancer and Capricorn, along its migratory belt.

The length of a day is determined by the Earth's rotation around its axis, which has been accelerating during the past several decades. Our days have been becoming shorter due to this tendency.

Thus, vertical rays are responsible for shorter days.

To learn more about the vertical rays, follow the link;

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how do atoms achieve noble-gas configurations in single covalent bonds

Answers

Elements forming covalent compounds achieve noble gas configuration by sharing electrons within the atoms, unlike ionic compounds which achieve the noble gas configuration either by gaining or losing electrons from the outermost electron shell.

Answer:

by sharing an electron

Explanation:

each of the two bonded atoms share an electron....making a single covalent bond b/w the two....like in....F - F

(6) Predict the number of valence electrons for each of the following elements (4 pts)
(a) P
(b) Ar
(c) c
(d) Ni

Answers

Answer:

P = 5, Ar = 8, C = 4, Ni = 2

Explanation:

All these answers can be based off which column of the periodic table each element is in. This does exclude the transition medals in between the 2nd and 13th columns. Column 1 = 1, Column 2 = 2, Column 3 = 3 and so on. Transition metals can be determined based on their electron configuration, which in this case, Ni has 2 electrons in its outer most shell.

Which list includes only bulk properties of matter?
boiling point, strength of electrical forces, vapor pressure
kinetic energy, strength of electrical forces, vapor pressure
boiling point, surface tension, vapor pressure
boiling point, kinetic energy, surface tension

Answers

The list which includes only bulk properties of matter is: C. boiling point, surface tension, vapor pressure.

What is matter?

Matter can be defined as anything that has mass and can occupy space.

Thus, any physical object or substance that is found on planet Earth is typically composed of matter.

The three (3) states of matter:

Since all matter are made up of atoms, they have a property of existing in three (3) distinct states and these include;

SolidGasLiquid

A bulk property of matter refers to the property that affects matter as a whole and they are listed as follows:

1. Stress

2. Strain

3. Elasticity

4. Boiling point

5. Surface tension

6. Vapor pressure

In conclusion, the other list of properties are not a bulk property of matter.

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What do you already know about throwing a curveball?​

Answers

Answer: You have to have good mechanics as well as the curve with velocity and speed.

The MLB Pitchers you see can be an example.

Commentators yelling Nasty Curveball, Strikeout!!

what year did ernest rutherford make his discovery

Answers

Answer:

May, 1911: Rutherford and the Discovery of the Atomic Nucleus.

Explanation:

Mark me brainly please.

count the atoms in the following example
Need answer ASAP​

Answers

Answer:

32 atoms.

Explanation:

4 x 2 = 8 +

4 x 3(O3) = 12 +

4 x 3(SO3) = 12; 32

1) Calculate the average speed in meters/minute for the trip represented
by the walk graphed here.
e
A) 0.5m/min
B) 1m/min
C)
5m/min
nber as you
D) 30m/min
has only
quantity and has
2) What is the average velocity of the person taking this walk?

Answers

Answer:

in physics we never work with minutes only seconds.

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