How many Oxygen atoms are present in this
molecular formula: 2CO2?

Answer:

need more so we can answer

Explanation:

Answer:

13

Explanation:

The mass number of an atom is the sum of the number of protons and neutrons.

27 = protons + 14

protons = 13

The number of protons is equal to the atomic number.

Answer: 41 or Niobium

Explanation: To get the number of Protons or Electrons given the number of Neutrons and Mass, you have to add the given numbers. This gives the number of Protons and Electrons which is the same number as the Atomic number. So, 14 Neutrons plus the mass of 27 is equal to 41, which gives the element Niobium

Answer:

Therefore,900 C of charge produce produce chlorine=(71g)(1.93×105C)×(900C)=0.331g.

Explanation:

Follow me..........

The electron configuration of Iron is:

[Ar] 3d⁶4s²

Answer:

Each of the four blocks of the periodic table is the collection of elements that have common valence orbitals, or that their valence are found in one of the four orbitals with azimuthal quantum number 0, 1, 2, or 3 which corresponds to the shape (s), principal (p), diffuse (d), or fundamental (f) orbitals respectively

The maximum number of electrons in the s-orbital = 2 electrons

The maximum number of electrons in the p-orbital = 6 electrons

The maximum number of electrons in the d-block = 10 electrons

The maximum number of electrons in the f-orbital = 14 electrons

Therefore, given that the elements of the within each of the blocks have their valence electron in the corresponding orbital in which they are located on the periodic table, given the periodic nature of the periodic table, the width of each block of elements corresponds to the maximum number of elements that can be found in their valence orbital.

Therefore, we have;

The width of the s-block elements = 2 block units

The width of the p-block elements = 6 block units

The width of the d-block elements = 10 block units

The width of the f-block elements = 14 block units

Explanation:

Answer:

huh

Explanation:

Answer:

?

Explanation:

The act of depositing material, especially by a natural process; the resultant deposit.

Answer:

the act of deposing someone especially a monarch

Answer:

Drinking water should have sufficiently low levels of dissolved salts or microbes.

Explanation:

Explanation:

Structure of Carbon dioxide is in the attachment.

Here,

Hybridization of Carbon is sp

Bond angle 180°

Structure = linear

Answer:

O=C=O

Explanation:

this is all you need

Answer:

200 W

Explanation:

Formula of Power is

P= W/T

where

W= Work and T= Time

so

4000/20 = 200J/s or 200 W

Answer:0.360

Explanation:

I had this on ck12 yesterday

The moles of sodium ions were present in the solution before the reaction proceeded is 0.36moles

The formula for calculating the molarity of a solution is expressed as:

Molarity = moles/volume

Given the following parameters

Molarity = 4.00M

Volume of sodium sulfate = 45mL = 0.045L

Substitute to have;

Molarity = 4 * 0,045

Molarity = 0.18

Since there are 2 atoms of sodium ion in the solution, hence the moles of sodium ions were present in the solution before the reaction proceeded is 0.36moles

Learn more on molarity here: https://brainly.com/question/17138838

Answer:

Fall or autumn

Explanation:

Answer:

Your help from me is a good luck! :)

Explanation:

Lol sorry I don't know the answer and don't want to tell you something wrong. Good luck though. Have a great day!

Mass of Mg=3 g

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

mol Mg in 7.43 x 10²² atoms :

[tex]\tt \dfrac{7.43\times 10^{22}}{6.02\times 10^{23}}=0.1234[/tex]

mass Mg

[tex]\tt mass=mol\times MW\\\\mass=0.1234\times 24.3=2.99\approx 3[/tex]

Answer:

chemical

Explanation:

Salt changes the chemical makeup of the water and allows it to get colder than what it would normally freeze at.

Answer:

let the number be x

so (x+6)/3 =5

x+6=15

x=9

Answer:

Rb>Na>P>S>Cl

Explanation:

In a group from up to down the atomic radius increases

In a row from left to right the atomic radius decreases.

Answer:

2 ^0

Explanation:

Answer:

0

Explanation:

Water doesn't really have a charge

Answer: loss of nutrients

Explanation:

the quarry was dug up and vegetation started dyeing. the quarry was probably rich with nutrients.

Answer:

The increase in CO2 will affect crop plants by causing in increase in global warming and therefore, will stunt plant growth and cause excessive heat to kill the plants.

Explanation:

Hope this helps! xoxo

Answer:

This question is incomplete

Explanation:

This question is "lacking" in some words. A substance that conducts electric current when in it's liquid state is an electrovalent or ionic compound and the type of bond present in this substance is electrovalent or ionic bond. This is the type of bond that involves the transfer of electron(s) between constituent atoms. One major characteristic of these substances is that they conduct electric current when dissolved in water. Examples include NaCl and KBr

Answer: B. The density of the helium atoms decreased.

Explanation:

Answer:

Protons:

- positive

- aka cation

- in the nucleus along with the neutrons

Electrons:

- negative

- aka anion

- situated in the orbital shells/configuration levels (there are many names)

Answer:

None of the above

Explanation:

Erikson's was a student of freud's and expanded of his theory of psychosexual development by emphasizing the importance of culture in parenting practices and motivations and adding three stages of adult development.

Answer:

The answer is 1:2 option B

Plz mark as brainliest............. hope it helps

The ratio of the metal cationic atom to the nonmetal anionic atom will be 1 :2. Therefore, option B is correct.

A lewis electron dot representation is utilized to represent the number of bonds, the bonding atoms, and the lone pairs on the atoms in the molecule or chemical compound.

Straight lines are used to represent the bond between atoms that are bonded to one another and excess electrons are represented as dot pairs to show the lone pairs on the atoms.

In the given image, calcium has two valence electrons and Fluorine needs one electron to complete its octet. So the calcium will donate its two electrons to two F. Each Flourine will accept one electron Therefore, the compound formed will be CaF₂.

Therefore, the ratio of the calcium cationic atom to the Fluorine anionic atom will be 1 : 2.

Learn more about the lewis dot diagram, here:

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Answer: The suffixes of the names of polyatomic ions have a pattern associated with them. ... For example, the sulfite ion has three oxygen atoms whereas the sulfate ion has four oxygen atoms.

Answer: (1)CaSO4 -> (2)O2 + (1)CaS

Explanation: edge 2020 chem