Molecular bonding cannot occur without..electrons, sunlight, protons, or neutrons?

Answers

Answer 1

Answer:

Answer:

Molecular bonding cannot occur without electrons.

Explanation:

In order to be 100% correct, the answers should be electrons, protons and neutrons. Since moleculas are formed by atoms and atoms are formed by electrons protons and neutrons.

However, if we consider only the bonding itself, the most important atomic particle is the electron. Molecular or convalent bonding happens when atoms share electrons pairs to reach stability.

Answer 2

Answer: Elections
Molecular bonding occours when atoms share electrons

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Which notion is incorrect?A. Dispersion forces are present in all molecular substances. B. The greater the dipole moment, the stronger the dipole-dipole forces. C. The polarizability of elongated molecules is greater than that of compact, more spherical molecules. D. London dispersion forces weaken in the order Xe < Kr < Ar E. Hydrogen bonding leads to the strongest intermolecular forces.
Which is the safest method for diluting concentrated sulfuric acid with water?

In a heterogeneous mixture the materials are mixed together anda. can not be separated.
b. will be easily separated.
c. lose their own properties.

Answers

In a heterogeneous mixture the materials are mixed together and will be easily separated. The correct option among all the options that are given in the question is the second option or option "b". An example of a heterogeneous mixture is a bowl of colored candies. I hope the answer helps you.

Given the formula representing a compound: what is a chemical name of this compound? 2-pentene 2-pentyne 3-pentene 3-pentyne

Answers

The question is incomplete. Complete question is attached below.
..........................................................................................................................

Correct Answer: Option 1) 2-pentene

Reason:
Following are the IUPAC rules for naming the compound
1) Select the longest carbon chain. In present case longest carbon chain has 5 carbon atom. Hence, it is a pentane derivative.
2) In case of alkene, replace 'e' of alkane by 'ene'
3) Give lowest number to function group. In present case, it is double bond.

Applying above rules, the IUPAC name of compound is 2-pentene

The nucleus of some isotopes will spontaneously undergo nuclear decay. These isotopes are said to be radioactive. What causes the nucleus of an isotope to be radioactive?a. too many electrons in its orbitals
b. exposure to toxic chemicals
c. the net charge of the atom
d. the attraction of protons to electrons
e. an unstable ratio of protons and neutrons

Answers

e. an unstable ratio of protons and neutrons

The answer is: e. an unstable ratio of protons and neutrons.

Neutrons stabilize the nucleus, because they attract protons and reduce electrical repulsion between protons.

The larger is neutron-proton ratio, the higher is probability for nuclear decay.

Ratio of protons to neutrons in a stable atom is 1 : 1.

For example, nitrogen atom (N-14) has 7 protons (p⁺) and 7 neutrons (n°). The neutron–proton ratio (N/Z ratio or nuclear ratio) is 7 : 7 ( 1 : 1 ).

Another example, neon atom (Ne-20) has 10 protons (p⁺) and 10 neutrons (n°). The neutron–proton ratio is 10 : 10 ( 1 : 1 ).

The neutron–proton ratio generally increases with increasing atomic number.

How many grams of calcium bromide are in 50.0 mL of a 0.25 M calcium bromide solution?

Answers

The mass of the compound can be calculated by the molarity. The mass of the calcium bromide in the given solution is 2.5 g.

The mass of the given compound can be calculated by the molarity formula,

$\bold {M = \frac {w}{m* v} * 1000}\n\n\bold {w = \frac {M* m* v}{ 1000}}$

Where,

M- molarity of the solution = 0.25 M

w - given mass =?

m -molar mass of Calcium bromide = 200 g/mol

v-volume in mL= 50 mL

Put the values in the formula,

$\bold {w = \frac {0.25* 200* 50}{ 1000}}\n\n\bold {w = 2.5\ g}$

Therefore, the mass of the calcium bromide in the given solution is 2.5 g.

To know more about Molarity,

brainly.com/question/12127540

$C_(m)=(n)/(V_(r))\n\nm=(m)/(M)\n\nC_(m)=(m)/(MV_(r)) \ \ \ \ \Rightarrow \ \ \ \ m=C_(m)MV_(r)}\n\nC_(m)=0.25(mol)/(L)\nM_{CaBr_(2)}=200(g)/(mol)\nV_(r)=50mL=0.05L\n\nm=0.25(mol)/(L)*200(g)/(mol)*0.05L= \emph{\textbf{2.5g}}$

Which numbers are used? Consider the balanced chemical equation that follows. You are asked to determine how many moles of water you can produce from 4.0 mol of hydrogen and excess oxygen. (Excess oxygen means that so much oxygen is available it will not run out.) Which of the numbers that appear in the balanced chemical equation below are used to perform this calculation?

Answers

I am assuming that the balanced equation is
2H₂ + O₂ ⇒ 2H₂O
Since the hydrogen is the limiting reagent (meaning if the hydrogen runs out the reaction stops), we need to compare the mole ratio between hydrogen and water.

The mole ratio between H₂ and H₂O is 2:2, or 1:1 (as seen on the coefficients of the balanced equation)
And so for every mole of hydrogen, it will be equal to water. Since hydrogen is 4 moles, 4 moles of water would be created.

So we use the coefficients of H₂ and H₂O in order to answer this question.

The number of moles of H2O is proportional to the number of moles of H2 as much as 4 moles

The calculation reference is the mole of the limiting reagent of the mole of H2O is based on the mol of H2

$\boxed{\boxed{\bold{Further~explanation}}}$

Stokiometry in Chemistry learns about chemical reactions mainly emphasizing quantitative, such as calculation of volume, mass, number, which is related to the number of ions, molecules, elements, etc.

In chemical calculations, the reaction can be determined, the number of substances that can be expressed in units of mass, volume, mole, or determine a chemical formula, for example, the substance level or molecular formula of the hydrate.

The reaction equation is the chemical formula of reagents and product substances

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

In the reactionequation there are also manifestations of reagent substances namely gas (g), liquid (liquid / l), solid (solid / s) and solution (aqueous / aq).

Known variable

4.0 mol of hydrogen and excess oxygen

Asked

the balanced chemical equation

Answer

Reactions that occur:

2H₂ + O₂ ⇒ 2H₂O

The reaction coefficient shows the mole ratio of reactants and reaction products

In determining the mole of the reaction, the calculation reference is the mole of the limiting reagent or the reagent that runs out. Because here it is stated that oxygen (O₂) is reacted under excess conditions, the hydrogen ratio becomes the limiting reagent. So the determination of the mole of H₂O is based on the mol of H₂

In the equivalent equation, the mole of H₂ and H₂O is 2: 2 or can be simplified to 1: 1, so the number of moles of H₂O is proportional to the number of moles of H₂ as much as 4 moles

$\boxed{\boxed{\bold{Learn~more}}}$

Excess reactant

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The percentage yield

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Limiting reactant

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Keywords: limiting reactant, excess, reaction coefficient, the balanced chemical equation, H₂O, O₂, H₂

What is the correct way to show carbon dioxide in the gas phase?a. CO (g)
b. CO2 (g)
c. CO2 (s)
d. CO2 (gp)

Answers

The correct way of showing carbon dioxide in the gas phase is b. CO2 (g)

This notation is commonly used in showing chemical reactions wherein the phases of the constituents are important. Gases are denoted by (g), solids are denoted by (s), and liquids are denoted by (l). Aqueous solutions are also denoted (aq).

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A 4.00 mL aliquot of a 0.15 M HCl solution is diluted to a final volume of 25.00 mL. What is the molarity of this first dilution solution? Then a second dilution was made by taking 7.50 mL of the first dilution and diluting it to 50.00 mL. What is the molarity of this second dilution?