How does the law of conservation of mass apply to this reaction:Mg + 2HCl → H2 + MgCl2?

Answers

Answer 1
The law of conservation of mass applies to every reaction. In this case, you start with 1 Mg, 2 H, and 2CL and end up with the same five only their bonds have been rearranged, or in other words, they are joined up differently.
Answer 2

Answer:

The law of conservation of mass has already been applied. There is an equal number of each element on both sides of the equation.

Explanation:

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How Does The Law Of Conservation Of Mass Apply To This Reaction:Mg + 2HCl H2 + MgCl2?

Related Questions

Examine the models shown above.where is potential energy the greatest

Answers

Answer:

A

Explanation:

Because it is the greatest

why does the total volume of water and alcohol decrease when the liquids were mixed together?

Answers

Answer: I think the alcohol molecules slip between the water molecules and take up that space, so you have less that you started with.

Explanation:

in structural isomers atoms and functional groups join together in different ways. which of the following statements is not correct with respect to structural isomers

Answers

Structural isomerism is based on the existence of different molecular

structures formed by the same elements.

The statement that is not correct with respect to structural isomers is; All

structural isomers show hydrogen bonding.

Reason:

Structural isomers are isomers that have different molecular structures but

the same molecular formula. They are referred to as constitutional isomers

Therefore;

The empirical formula which is obtainable from the molecular formula is the same for structural isomers.The structural formula of structural isomers are differentStructural isomers that are functional isomers have different chemical properties.

However;

Structural isomers that are linkage isomers may not have hydrogen bonding.

Therefore, the statement that is not correct with respect to structural isomers is; All structural isomers show hydrogen bonding.

 

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The question options are;

The same empirical formula among structural isomers.

Different physical and chemical properties can be possessed by structural isomers.

Structural isomers have different structural formulas.

Hydrogen bonding is shown in all structural isomers.

All the above statements are correct.

An atom of radium (Ra) forms a monatomic ion.
Which ion does it most likely form?
a- Ra2-
b- Ra-
c- Ra2+
d- Ra+

Answers

Answer:

The atomic number of the element Radium (Ra) is 88. It is an alkaline earth metal. Electronic configuration of Radium (Ra) will be [Rn]7s^{2}[Rn]7s

2

It belongs to the group IIA of the periodic table. Alkaline earth metals that belong to the group IIA of the periodic table lose the valence electrons to form a +2 ion.

Therefore, Radium with an electronic configuration of [Rn]7s^{2}[Rn]7s

2

will lose the two 7s electrons to form the cation with +2 charge.

d. Period 3 element with 6 valence electrons

Answers

Answer:

Sulfur is an element is Period 3 with 6 valence electrons.

Based on electronegativity differences, which bond is a polar covalent bond?

Answers

Answer:

A bond in which the electronegativity difference between the atoms is between 0.4 and 1.7 is called a polar covalent bond.

A polar covalent bond is a covalent bond in which the atoms have an unequal attraction for electrons and so the sharing is unequal.

Regular table salt is sodium chloride, NaCl. It is a bonding of an Na+ ion and a Cl- ion. Which of these ions is bigger?

Answers

Answer:

in the periodic table we can see that the ions of Cl is greater than the ions in Na

Cl- ion is bigger than Na+ ion because of the presence of more number of electrons.

The atomic number of sodium+ ion is 10 means it has 10 number of electrons which can accommodate into 2 shells or orbits while on the hand, chlorine- ion has atomic number 18 means it has 18 number of electrons which can be accommodate into 3 shells or orbit.

So there is one shell more in chlorine ion as compared to sodium ion which make the size of chlorine ion large so we can conclude that chlorine ion is bigger than sodium ion.

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What is the speed of an object that travels 20 meters in 5

Answers

Answer:

5 what

Explanation:

not enough information

aluminum has a density of 2.70 g/cm^3, a sample with a volume of 50 cm^3 will have how much mass?

Answers

Answer:

135 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

density = 2.70 g/cm³

volume = 50 cm³

We have

mass = 2.70 × 50 = 135

We have the final answer as

135 g

Hope this helps you

Please I will mark brainliest !!! I need both answered

Answers

7 Protons and 7 Neutrons

Someone pls help me I will make you brain


Match them pls

Answers

Answer:

Explanation:

Carbon monoxide →  Prevents oxygen from being transported in the body

Nitrogen oxides → Can cause asthma

Particulate matter → Irritates lungs, dizziness, seizures, or death

Sulfur oxides → Inflammation and irritation of the respiratory system

I hope this helps!

why is it necessary to run tlc in a closed container?

Answers

Answer:

Explanation:

It is necessary to run TLC in a closed container and have the interior saturated with the solvent vapor to ensure maximum resolution between components and to prevent solvent evaporating off. If the solvent evaporates off, the Rf value would be lower than the expected value.

what kind of reaction is happening when glaze is fired

Answers

Answer:

Oxidation and Reduction occurs

Explanation:

What are the atoms of Fe(SCN)3

Answers

Answer:

55.845

Explanation:

yep

Name the following ionic compounds that contain transition metals. Use the periodic table provided
and a chart that lists the possible charges of transition metals, found here.
Cuci
copper(1) chloride
O
copper chloride
copper(ll) chloride
DONE

Answers

The correct name of the compound CuCl is copper I chloride.

An ionic compound is formed two atoms when one loose electrons and the other atoms gains those electrons. Ionic bonds are actually an ion pair, a pair of oppositely charged ions held together by electrostatic interaction. Transition metals are elements with incompletely filled d orbitals. Copper is a transition element.

The compound CuCl is named copper I chloride. We can see that the copper is in the +1 oxidation state in this compound hence the name.

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Answer:

copper(I) chloride

Explanation:

Edge 2021

hii thank you for helping me for that question please give me now this question define the air polution​

Answers

Answer:

A mixture of solid particles and gases in the air.

Explanation:

Air pollution is a mixture of solid particles and gases in the air. car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog.

Air pollution can be defined as the presence of toxic chemicals or compounds (including those of biological origin) in the air, at levels that pose a health risk. In an even broader sense, air pollution means the presence of chemicals or compounds in the air which are usually not present and which lower the quality of the air or cause detrimental changes to the quality of life (such as the damaging of the ozone layer or causing global warming).

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how do lone pairs of electrons influence the structure of molecules?

Answers

Answer:

lone pairs and bonds both repulsive each other

Explanation:

therefore bond angles will be changed that leads to the original geometry in nature

Draw the reaction of bromoethyne with 2 molecules of HBr. Name the product(s) and the type of reaction.
PLEASE HELP!!

Answers

this maybe can help you

i am sorry if not

Bromo-ethene is a product and it is a electrophilic addition reaction.

What is chemical equation?

A chemical equation is a method of representing a symbols and formulas of substance involved in this equation.

For example:  zinc metal reacts with dilute sulfuric acid to form zinc sulfate and hydrogen gas.

Types of chemical reactions:

combination reactions decomposition reaction precipitation reaction neutralization reaction

Electrophilic addition reaction

In this reaction containing a double or triple bond and this one hour breakdown into 2 π and 2 Sigma bonds.

In this reaction HBr undergoes heterolytic bond fusion the protons bonds with the carbon atom of the Carbon triple bond this result in the formation of carbo cation immediate the bromide iron forms a bond with the carbon cation producing Bromo-Ethene.

CH ≡ CBr + 2HBr  →  Br-CH=CH₂ (Bromo-ethene)

In these reaction Bromo-ethyne react with hydrogen bromide it form Bromo-ethene.

Bromo-ethene is a product and it is a electrophilic addition reaction.

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Someone pls help me I will make you brain

Answers

Answer:

i cant read it but its c and a

Explanation:

my thinking faces

Hoàn thành phương trình sau. Và ghi rõ phản ứng ion: NaHCO33 + NaOH->

Answers

Answer:

hello

Explanation:

hello

Is it possible to have an electromagnetic wave with a wavelength (a) of 104.68 m and an energy of 3.25 x 10-27 J? Show your work.

Answers

2. You work for an environmental company as an environmental toxicologist and have been hired to determine the contaminant present in a local resident’s pool. Create a flow chart outlining how you would detect the possible presence of Fe2+ and/or Sr2+

What is the formula for Water?
Name full name element's name

Answers

Answer:

2 Hydrogen atoms and 1 Oxygen atoms makes water

Explanation:

Hope this helps^^

Answer: Its chemical formula H2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms,

Explanation: i hopes it helps :)

solutions of barium bromide and sodium phosphate combine to form solid barium phosphate and aqueous sodium bromide. true or false?

Answers

Answer:

The Answer Is False

Explanation:

I Just Think Thats The Answer

What is the molecular mass of Br 2?

Answers

Answer:

159.808 g/mol

Answer:

159.80 g/mol

Explanation:

79.90×2=159.80g/mol

Someone pls help me I will make you brain

Answers

Answer:

Its the first one

Explanation:

I learned this before

What is 40g of calcium and 71 g of chlorine

Answers

The answer is 111g of calcium chloride

what is the pattern of liquids and solids from the center of the earth out

Answers

Explanation:

I'm sorry if this doesn't answer this correctly but solid liquid solider solid liquid/solid

what minimum frequency of light is required to ionize boron?

Answers

Answer:

frequency  = 8.22 x 10¹⁴ s⁻¹

Explanation:

An electron's positional potential energy while in a given principle quantum energy level is given by Eₙ = - A/n² and A = constant = 2.18 x 10⁻¹⁸j. So to remove an electron from the valence level of Boron (₅B), energy need be added to promote the electron from n = 2 to n = ∞. That is, ΔE(ionization) = E(n=∞) - E(n=2) = (-A/(∞)²) - (-A/(2)²) = [2.18 x 10⁻¹⁸j/4] joules = 5.45 x 10⁻¹⁹ joules.

The frequency (f) of the wave ionization energy can then be determined from the expression ΔE(izn) = h·f; h = Planck's Constant = 6.63 x 10⁻³⁴j·s. That is:

ΔE(izn) = h·f => f = ΔE(izn)/h = 5.45 x 10⁻¹⁹ j/6.63 x 10⁻³⁴ j·s = 8.22 x 10¹⁴ s⁻¹

Which elements are present in all organic compounds? 1. Hydrogen and oxygen 2. Nitrogen and Carbon 3. Nitrogen and oxygen 4. Hydrogen and Carbon

Answers

Answer:

my answer is num:3 Hydrogen and oxygen.

Explain why graphite conducts electricity.

Answer in terms of the structure and bonding in graphite.

Answers

Answer:

Diamond has a giant molecular structure. Each carbon atom is covalently bonded to four other carbon atoms. A lot of energy is needed to separate the atoms in diamond. This is because covalent bonds are strong, and diamond contains very many covalent bonds.

Graphite on the other hand has flat layers of carbon atoms held by weak van der Waal's forces which makes Graphite a weak object and easily breakable.

As graphite contains layers of carbon atoms. The layers slide over each other easily because there are only weak forces between them, making graphite slippery. These electrons can move through the graphite, carrying charge from place to place and allowing graphite to conduct electricity.One valence electron of each carbon atom remains free, Thus making graphite a good conductor of electricity. Whereas in diamond, they have no free mobile electron. Hence there won't be flow of electrons That is the reason behind diamond are bad conductor electricity.These electrons are free to move between the layers in graphite, so graphite can conduct electricity.The forces between the layers in graphite are weak. This means that the layers can slide over each other.

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