And D. It’s long stems Sorry couldn’t fit D in the picture

Answer:

B. Periodic electrons

Answer:

See explanation and image attached

Explanation:

The most common reaction of epoxide rings is the ring opening reaction. This ring opening reaction serves to relieve the stress in the ring.

Now, The first step in the acid catalysed epoxide ring opening reaction is the protonation of the epoxide.

This is now followed by the attack of the nucleophile. Subsequent deprotonation regenerates the acid catalyst and yields the product.

The structure of the product formed in the reaction of an epoxide with ethoxide ion is attached below as we get 2 substituted alcohol product.

Epoxides are comes under the category of ether, which are the three membered ring structure.

Due to its ring structure, strain or stress is present in the three membered ring which makes it available to react easily with nucleophile. Ethoxide ion acts as a nucleophile in this reaction which attacks on the electrophilic carbon of the epoxide and resulting into the break up of bond and opening of ring.

As a result of this reaction we get the 2 substituted alcohol as attached in the image.

Hence structure of the product is attached below.

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Answer:

False.

Explanation:

I majored in Chemistry

I'm pretty sure its D because if it's manufactured and distributed its likely not toxin or poison. a narcotic could be a controlled substance so that's why I'm leaning towards D

Answer:

Neutral

Explanation:

U need to count the number of protons and electrons and see which has more...

Here the atom is neutral cause the electrons and protons are equal and cancell  each other out.

I hope im right!!

Answer:

To find the overall charge subtract electrons from protons

So in this example its 0

Explanation:

4 Protons

4 electrons

so basically

+4-4=0

Answer:

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Answer:

d

When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.

Answer:

19 atoms

Explanation:

6 carbon, 12 hydrogen, one Nitrogen

Answer:

Explanation: The answer is B. Because meiosis process produce genetically different, haploid cells. Also, meiosis basically happen to produce gametes. Gametes is haploid. So, the answer is B

Meiosis is a method for cell division taking place in some organisms. In meiosis the cell the cells produced at the end of meiosis contain half the number of chromosomes as the parent cell. Hence, option C is correct.

meiosis is biological process by which the cell undergo division to produce genetically identical daughter cells. Other methods of cell divisions include mitosis, binary division, budding etc.

The first stage of meiosis includes pairing homologous chromosomes and they segregate to opposite ends of the meiotic spindle.This phase is known as reduction division where, the number of chromosome reduces to half.

This differentiated chromatids separates out in the second phase and yielding the haploid cells. Hence, in meiosis, the cells produced at the end of meiosis contain half the number of chromosomes as the parent cell.

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Answer:

Explanation:

In all, an estimated 8,000 to 10,000 Iraqi forces were killed, in comparison with only 300 coalition troops. Though the Gulf War was recognized as a decisive victory for the coalition, Kuwait and Iraq suffered enormous damage, and Saddam Hussein was not forced from power.

hope this helps a lot!

Answer:

1.31 × 10^47

Explanation:

1 mol of Fe =

[tex]1 \: mol \: of \ fe = 6.02 \times 10 ^{23} \ \\ x \: mol \: offe \: = 7.88 \times {10}^{24} \\ \\ \\ so \: 7.88 \times {10}^{24} \div 6.02 \times {10}^{23} \\ \\ x = 1.31 \times {10}^{47} [/tex]

Answer: 682 grams

Explanation:

The balanced chemical reaction is:

[tex]4Fe+3O_2\rightarrow 2Fe_2O_3[/tex]

[tex]O_2[/tex] is the limiting reagent as it limits the formation of product and [tex]Fe[/tex] is the excess reagent.

According to stoichiometry :

3 moles of [tex]O_2[/tex] produce = 2 moles of [tex]Fe_2O_3[/tex]

Thus 6.40 moles of [tex]O_2[/tex] will produce=[tex]\frac{2}{3}\times 6.40=4.27moles[/tex]  of [tex]Fe_2O_3[/tex]

Mass of [tex]Fe_2O_3=moles\times {\text {Molar mass}}=4.27moles\times 159.69g/mol=682g[/tex]

Thus 682 g of [tex]Fe_2O_3[/tex] will be produced from 6.40 moles of oxygen

Answer:

electrons are moved through a magnet creating a current. the current instracts with a circuit, moving the conductor in the onentation of the field

Answer:

It is liquid at most temperatures on Earth.

The question is incomplete, the complete question is;

A chemist prepares a solution of silver (I) perchlorate (AgCIO4) by measuring out 134.g of silver (I) perchlorate into a 50.ml volumetric flask and filling the flask to the mark with water. calculate the concentration in mol/L of the silver (I) perchlorate solution. Round your answer to 2 significant digits.

Answer:

13 mol/L

Explanation:

We must first obtain the number of moles of silver I perchlorate involved

Molar mass of silver I perchlorate = 207.32 g/mol

Number of moles of silver I perchlorate = 134g/207.32 g/mol = 0.646 moles

Recall that;

n =CV

C= concentration

V= volume

n = number of moles

C = n/V

C = 0.646 moles * 1000/50

C = 13 mol/L

Answer:

A) Ionic compounds containing variable metals should have Roman numerals

Explanation:

The correct option is;

A) Ionic compounds containing variable metals should have Roman numerals

This is because these variable metals have variable oxidation states and charges. Hence, to be able to distinguish between compounds containing the same  element but different charges, the roman numerals is used. For example;

FeCl₃ - Iron(III) Chloride

FeCl₂ -  Iron(II) Chloride

Answer:

720

Explanation:

4 m/s

60 seconds

                            = 180 seconds

3 minutes

4 m/s

                             = 720 m/s

180 seconds

Answer:

don't sent such messages whatever you are

According to the concept of solubility and dissociation, aspirin at pH 8 and 10 undergoes dissociation to yield ions.

An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.

Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.Ions are generated on dissociation.

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Answer:

Explanation:

A conjugate base of HIO3 is IO3– ion

The chemical formula of the conjugate base of the Bronsted Lowry acid HIO₃ can be represented as IO₃⁻.

According to Bronsted - Lowry theory, acid is a substance that donates a proton or H⁺ ion and forms its conjugate base while the base is a substance that accepts a proton or H⁺ ion and forms its conjugate acid.

Bronsted-Lowry acid donates a proton to the other compound and forms a conjugate base.

Acid   ⇄   Conjugate base  +   Proton

If a conjugate base accepts a proton back then acid reforms.

The Bronsted-Lowry base is a substance that accepts a proton from other compounds.

Base + Proton ⇄ Conjugate acid

If a conjugated acid donates its proton then the base reforms.

The conjugate base of the Bronsted-Lowry acid HIO₃ is:

HIO₃  ⇄  H⁺ +  IO₃⁻

Therefore, the conjugate base of the Bronsted-Lowry acid HIO₃ is IO₃⁻.

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Answer: The answer is 39.99711.

Explanation:

How many grams NaOH in 1 mol? The answer is 39.99711.

We assume you are converting between grams NaOH and mole.

You can view more details on each measurement unit:

molecular weight of NaOH or mol

This compound is also known as Sodium Hydroxide.

The SI base unit for amount of substance is the mole.

1 grams NaOH is equal to 0.025001806380511 mole.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between grams NaOH and mole.

Type in your own numbers in the form to convert the units!

Convert another chemical substance

Convert grams

NaOH

to moles  

Quick conversion chart of grams NaOH to mol

1 grams NaOH to mol = 0.025 mol

10 grams NaOH to mol = 0.25002 mol

20 grams NaOH to mol = 0.50004 mol

30 grams NaOH to mol = 0.75005 mol

40 grams NaOH to mol = 1.00007 mol

50 grams NaOH to mol = 1.25009 mol

100 grams NaOH to mol = 2.50018 mol

200 grams NaOH to mol = 5.00036 mol

Answer:

B. is the answer

Explanation:

Energy in form of heat is transferred from the warmer mashed potatoes to the cooler spoon.