Given the reaction below, which is the being oxidized? mg cl2 right arrow. mg2 2cl– 2ci– ci2 mg mg2

Answers

Answer 1

In the given decomposition reaction of MgCl₂, the oxidized species is magnesium.

What are oxidized species?

Those species which goes through the oxidation process by the addition of oxygen or by the removal of hydrogen and electrons are known as oxidized species.

Given chemical reaction is:

MgCl₂ → Mg²⁺ + 2Cl⁻

In the above reaction oxidation of magnesium takes place as they losses electrons and reduction of chlorine takes place as they gain electrons.

Hence magnesium is the oxidized specie.

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Answer 2

Answer: B. Mg

Explanation:

E D G E


Related Questions

how many miles of oxygen gas were used to produce 8.0 moles of water

Answers

Answer:

4 moles

Explanation:

Oxygen gas is O2   (two atoms of oxygen)

2 H2 + O2  = 2 H2 O    

          one mole of oxygen gas produces TWO moles of water

               so you need 4 moles of O2 to produce 8 moles of water

Oxygen gas occupies a volume of 95 ml at 305 k. what volume will it occupy at 550 k?

Answers

The new volume of the oxgen gas as the temperature is increased is 171.3ml.

Given the data in the question;

Initial olume of oxygen gas; [tex]V_1 = 95ml = 0.095L[/tex]Intial temperature; [tex]T_1 = 305K[/tex]Final temperature; [tex]T_2 = 550K[/tex]Final volume of oxygen gas; [tex]V_2 = \ ?[/tex]

Charles's law

Charles's law states that "the volume occupied by a definite quantity of gas is directly proportional to its absolute temperature.

It is expressed as;

[tex]\frac{V_1}{T_1} = \frac{V_2}{T_2}[/tex]

To determine the new volume of the oxgen gas as the temperature is increased, we substitute our given values into the expression above.

[tex]\frac{V_1}{T_1} = \frac{V_2}{T_2}\\ \\ \frac{0.095L}{305K} = \frac{V_2}{550K}\\\\V_2 * 305K = 0.095L * 550K\\\\V_2 * 305K = 52.25LK\\\\V_2 = \frac{52.25LK}{305K} \\\\V_2 = 0.1713L\\\\V_2 = 171.3ml[/tex]

Therefore, the new volume of the oxgen gas as the temperature is increased is 171.3ml.

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A teacher drops a bottle containing sodium chloride. The bottle breaks when it
hits the floor. The teacher sweeps up the mixture of sodium chloride and glass.
Describe how the teacher can obtain a pure, dry sample of sodium chloride from
the mixture.

Answers

The mixture of sodium chloride and broken glasses can be separated by dissolution, filtration, and evaporation respectively.

Separation of mixture

The mixture containing sodium chloride and broken glasses can be separated as follos:

First, by dissolving the mixture in water. The soluble sodium chloride will dissolve while the broken glasses will remain insoluble.

Filteration is carried out to filter off the broken glasses

The filtrate which is now a mixture of water and sodium chloride can then be heated to evaporate off the water and to obtain dry sodium chloride.

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The chemical formula for water is what does the formula show about each element in the compound?.

Answers

The formula of water compound is given by H_2O

This states that

1 molecule of water contains

2 hydrogens(H)1 Oxygen(O)

And if we write the chemical reaction

2H_2+O_2—›2H_2O

Helium is an example
of a gas because
A. helium does not take the shape of its
container.
B. helium particles are very randomly spaced
and moving freely.
C. helium particles are electrically charged.
D. helium cannot change its size or shape to fit
its container

Answers

Answer:

B

Explanation:

The particles move freely

what does this diagram show and what order is it in?

Answers

Answer:

Individual.

Explanation:

The diagram is showing how the biosphere is composed of, ending at ecosystem. Within an ecosystem, there is a community. Within a community, there are different populations. In one population, there are individuals that make it up.

So, since individuals make up a population, populations making up a community, and communities making up ecosystems, you find your Q to be individual.

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I hope this helps!

-No one

Riley took a train ride to Florida for vacation. It
took 67 hours to travel a distance of 1,546
kilometers. What was the speed of the train?

Answers

23 kilometers an hour or to be exact 23.07 kilometers an hour

Answer: 23

I hope this helps! Have a good day! :)

Write a chemical equation for the acid/base reaction that produces the salt potassium sulfate?

Answers

Answer:

KOH + H2SO4 --> K2SO4 + H2O

Solve
A gas occupies 9 L at a temperature of 325K. What is the volume at 450?
O 125L
ОЗК
O 302
O 87 L

Answers

The volume of a gas that occupies 9 L at a temperature of 325K is 12.46L.

How to calculate volume?

The volume of a given gas can be calculated using the following Charle's law equation:

V1/T1 = V2/T2

Where;

T1 = initial temperatureT2 = final temperatureV1 = initial volumeV2 = final volume

V1 = 9LV2 = ?T1 = 325KT2 = 450K

9/325 = V2/450

325V2 = 4050

V2 = 4050/325

V2 = 12.46L

Therefore, the volume of a gas that occupies 9 L at a temperature of 325K is 12.46L.

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In this performance task, students will analyze nutrition labels of some of
the foods and drinks that they recently consumed. They will identify which type of
macromolecule (carbohydrates, lipids, proteins) is mainly supplied by the item and they will
compare their consumption with the daily recommended intake for that type of
macromolecule. Students will also investigate salt and added sugar as well as vitamins and
minerals in the item. Finally, students will attach the nutritional labels in a short bond paper.

Answers

Explanation:

Globalization is the word used to describe the growing interdependence of the world's economies, cultures, and populations, brought about by cross-border trade in goods and services, technology, and flows of investment, people, and information

Answer the question!

Answers

Answer:

i think 50C

Explanation:

It only makes since cause if its 4.43 and u want the volume to be 3.13 it has to me 50C

Use Charles law

[tex]\\ \rm\rightarrowtail V_1T_2=V_2T_1[/tex]

[tex]\\ \rm\rightarrowtail 4.43T_2=(70)(3.13)[/tex]

[tex]\\ \rm\rightarrowtail 4.43T_2=219.1[/tex]

[tex]\\ \rm\rightarrowtail T_2=49.4°C[/tex]

Need help with predicting products
Na3PO4
+
ZnSO4

Answers

Double replacement reactions switch the pairs

Can someone pls tell me the answer to these 2 fill in the blanks I will surely mark him as the brain list answer

Answers

Question 22: conclusion
Question 23: analyze

Particles 91, 92, and q3 are in a straight line.
Particles q1 = -28.1 uc, q2 = +25.5 uc, and
q3 = -47.9 uc. Particles qi and q2 are separated
by 0.300 m. Particles q2 and q3 are separated by
0.300 m. What is the net force on q3?
Remember: Negative forces (-F) will point Left
Positive forces (+F) will point Right

Answers

The net force on particle 3 due to the presence of particle 1 and particle 2 on the same straight line is 50.5 N to the right.

Force between particle 1 and particle 2

The force between the two particles is determined from Coulomb's law as shown below;

F = kq₁q₂/r²

F(1,2) = -(9 x 10⁹ x 28.1 x 10⁻⁶ x 25.5 x 10⁻⁶) / (0.3)²

F(1,2) = - 71.66 N

Force between particle 2 and particle 3

F(2,3) = + (9 x 10⁹ x 25.5 x 10⁻⁶ x 47.9 x 10⁻⁶) / (0.3)²

F(2,3) = + 122.15 N

Net force on particle 3

The net force on particle 3 is determined as follows;

F(net) = 122.15 N - 71.66 N

F(net) = + 50.5 N

Thus, the net force on particle 3 due to the presence of particle 1 and particle 2 on the same straight line is 50.5 N to the right.

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How are elements organized on the modern periodic table?.

Answers

Answer:

They are organized from least to greatest by their atomic number.

Explanation:

Hope that helps!

Answer:

Explanation:

Elements are listed in numerical order by atomic number. The atomic number is the number of protons in an atom of that element. So element number 1 (hydrogen) is the first element. Every atom of hydrogen has 1 proton. Until a new element is discovered, the last element on the table is element number 118. Every atom of element 118 has 118 protons. This is the biggest difference between today's periodic table and Mendeleev's periodic table. The original table organized the elements by increasing atomic weight.

Each horizontal row on the periodic table is called a period. There are seven periods on the periodic table. Elements in the same period all have the same electron ground state energy level. As you move from left to right across a period, elements transition from displaying metal characteristics toward nonmetallic properties.

Each vertical column on the periodic table is called a group. Elements belonging to one of the 18 groups will share similar properties. Atoms of each element within a group have the same number of electrons in their outermost electron shell. For example, elements of the halogen group all have a valence of -1 and are highly reactive.

There are two rows of elements found below the main body of the periodic table. They are placed there because there wasn't room to put them where they should go. These rows of elements, the lanthanides and actinides, are special transition metals. The top row goes with period 6, while the bottom row goes with period 7.

Each element has its tile or cell in the periodic table. The exact information given for the element varies, but there is always the atomic number, the symbol for the element, and the atomic weight. The element symbol is a shorthand notation that is either one capital letter or a capital letter and a lowercase letter. The exception is the elements at the very end of the periodic table, which have placeholder names (until they are officially discovered and named) and three-letter symbols.

The two main types of elements are metals and nonmetals. There are also elements with properties intermediate between metals and nonmetals. These elements are called metalloids or semimetals. Examples of groups of elements that are metals include alkali metals, alkaline earths, basic metals, and transition metals. Examples of groups of elements that are nonmetals are the nonmetals (of course), the halogens, and the noble gases.

Cyclohexane can be manufactured from hexane as shown in the equation.
C6H14 C6H12 + H2
Calculate the mass of cyclohexane that can be made from 258 g of hexane.
[Mr
of cyclohexane = 84

Answers

Mr Hexane = 86 g/mol

mol hexane = 258 : 86 = 3

mol cyclohexane = mol hexane = 3

mass cyclohexane = 3 x 84 = 252 g

The change in enthalpy that occurs in the process of converting reactants to products in a chemical reaction is called the _____ of reaction.

Answers

Answer:

Heat or Enthalpy of reaction

This is denoted as ∆H∆H is the enthalpy the of the reaction If ∆H is positive reaction is exothermic otherwise endothermic

what is the numerical value of gold silver and platinum?

Answers

Platinum:

850 Platinum: 85% platinum
950 Platinum: 95% platinum
900 Platinum: 90% platinum

Gold:

24 karat: 99.9% gold; the purest form.
22 karat: 91.7% gold
18 karat: 75% gold
14 karat: 58.3% gold
10 karat: 41.7% gold

What cell structure is best represented by the image?
A.
a permeable exoskeleton
B.
a waterproof nuclear envelope
C.
a non-permeable cell wall
D.
a selectively permeable membrane

Answers

A

Explanation:

What cell structure is best represented by the image?

A.

a permeable exoskeleton

B.

a waterproof nuclear envelope

C.

a non-permeable cell wall

D.

a selectively permeable membrane


How many moles are contained in 39 L of F2 gas at STP?

Answers

The number of moles contained in 39 L of F2 gas at STP is 1.74mol. Details on how to calculate number of moles can be found below.

How to calculate number of moles?

The number of moles of a gas at STP can be calculated using the following formula:

PV = nRT

Where;

P = pressureV = volume n = number of moles R = gas law constantT = temperature

At STP, the following applies:

T = 273KP = 1 atmR = 0.0821 Latm/molK

1 × 39 = n × 0.0821 × 273

39 = 22.41n

n = 1.74mol

Therefore, the number of moles contained in 39 L of F2 gas at STP is 1.74mol.

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What are the three types of stresses that can be applied to
a system at equilibrium?

Answers

Answer:

The 3 stressers are 1. Adding or removing reactants or products. 2. Changing the total pressure or volume. 3. changing the tempature of the system.

Explanation:

All three of these are stressers that can be applied.

-Hope This Helps!

-Justin:)

What is the most significant solute in determining the distribution of water among fluid compartments

Answers

Answer:

Sodium  (Na+)

Explanation:

Volume status is regulated through the monitoring of systemic solute per unit volume, or osmolarity. Sodium, the most prominent electrolyte 'solute' in extracellular fluid, is used to monitor extracellular osmolarity. A disproportionate loss of water relative to sodium results in a concentrating osmolar effect.

What is the molarity of a 250. mL H, SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution?
F) 0.800M
G)1.25M
H)125M
J)500. M

Answers

The molarity of a 250. mL H2SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution is 0.8M.

How to calculate molarity?

The molarity of a solution can be calculated using the following expression:

CaVa = CbVb

Where;

Ca = concentration of acidCb = concentration of baseVa = volume of acidVb = volume of base

In this question;

Ca = ?Va = 250mLCb = 10MVb = 20mL

Ca × 250 = 10 × 20

250Ca = 200

Ca = 200/250

Ca = 0.8M

Therefore, the molarity of a 250. mL H2SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution is 0.8M.

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24. When density decreases, the number of
molecules in a volume
A increases.
B decreases
C stays the same
D varies

Answers

The answer is A. Increase

1a. Review What holds the hydrogen and oxygen
atoms together in a water molecule?

Answers

Covalent bonds hold hydrogen and oxygen together.

Can anyone help me please

Answers

Explanation:

The Animal meat contains Vitamins, proteins and carbohydrates and many more,

The other food group includes various minerals, (like copper, Calcium, Sodium, Phosphorus, selenium, cobalt, iron, zinc etc) various Amino acids, Fatty acids, water and albumin

The sources of vitamin like B12 are animals, and vegetarian should consume plant based supplements to fulfill the need of essential macromolecules!

[Side note: Meat consumption is secondary cause of increasing global warming Go vegan!]

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How many nickel atoms are contained in a 92.02 mole sample

Answers

Answer:

By definition, and this is what Avogadro's constant tells you, 1 mole of nickel must contain 6.022⋅1023 atoms of nickel.

Explanation:

What makes an acid a strong acid in water makes a base or weak base

Answers

It’s ph level on the ph scale. 1-3 is a strong acid, 4-6 is a weak acid, 7 is neutral, 8-10 is a weak base, and 10-14 is a strong base.

Acids or bases with strong bonds remain as molecules in solutions known as weak acids or bases. The acids or bases with weak bonds easily dissociate into ions and are called strong acids or bases.

What is acid or base?

Acid is proton donor hydrogen containing substance. Base is proton acceptor molecule.

It can be predicted by pH indicator. pH with value less than 7 indicate acidity and value with more than 7 denotes base, and the one with value 7 is considered as neutral.

Thus, based on bond strength and its dissociation in the water makes it strong acid or weak base.

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Based on the electron configuration of the two atoms, predict the ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound.
magnesium 1s22s22p63s2
bromine 1s22s22p63s23p64s23d104p5
a. 1:1
b. 1:2
c. 2:1
d. 3:1​

Answers

The ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound is 1:2.

What is electron configuration?

The term electron configuration shows the arrangement of electrons in an atom. We have the configurations of the atoms as follows;

magnesium - 1s22s22p63s2

bromine - 1s22s22p63s23p64s23d104p5

We can see that the catio is Mg^2+ and the anioin is Br^- hence  the ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound is 1:2.

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Please help me and thank you and need this before Monday
How many grams of sodium metal is required to react with 0.950 grams of chlorine gas?

Answers

In a reaction involving sodium metal and chlorine gas, the amount of sodium metal required to react with 0.950 grams of chlorine gas would be 0.62 grams

Stoichiometric calculation

From the balanced equation of the reaction:

2Na (s) + Cl2 (g) ---------> 2NaCl (s)

The mole ratio of Na to Cl2 is 2:1.

Mole of 0.950 grams of chlorine gas = 0.950/70.906

                                                             = 0.0134 moles

Equivalent mole of Na = 0.0134 x 2 = 0.0268 moles

Mass of 0.0268 moles Na = 0.0268 x 22.99

                                           = 0.62 grams

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