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: B. Mg
Explanation:
E D G E
Balancing Chemical equations
20.
Answer:
Count each type of atom in reactants and products. ...
Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances. ...
Repeat steps 1 and 2 until the equation is balanced
Explanation:
Step 1: Coefficients Versus Subscripts. When approaching a chemical equation, it is important that you understand the difference between coefficients and subscripts. ...
Step 2: Sum the Atoms. ...
Step 3: Balance the First Element. ...
Step 4: Repeat for the Other Elements. ...
Step 5: Tips.
Answer:
2C6H6 + 15O2 = 12CO2 + 6H2O
Explanation:
This is a combustion reaction meaning a substance (in this case Benzene or C6H6) reacts with oxygen gas (O2) and releases energy in the form of light and heat.
so Benzene (C6H6) and Dioxygen (O2) are reactants meaning they are on the left side of the equation
Carbon Dioxide (CO2) and Water (H2O) are the products meaning they are on the right side of the equation
To balance an equation you need an equal amount of each element/compound/polyatomic on each side of the equation
so 2C6H6 + 15O2 = 12CO2 + 6H2O:
(2•6) = 12 C = (12•C) = 12 C ~ 12C = 12C
(2•6) = 12 H = (2•6) = 12 H ~ 12H = 12H
(15•2) = 30 O2 = [(12•2) • (6•1)] = 30 O2
~ 30 O2 = 30 O2
so the equation is now balanced
feel free to ask if you have any other questions
hope this helps :)
Calculate the volume of a solution of 3.6 M NH4Cl needed to prepare 350.0 mL of 1.24M NH4CH
Select one:
a. 120 mL
b. 12.0 mL
c. 967 ml
d. 96.7 ml
How many grams of ammonium chloride are in the solution you created in the above problem Select one:
a. 23.28
b. 0.438
c 53.58
d. 232 23
Answer:
select one :c
select two:d
Which of the compounds below will dissociate in water? Check all that apply.
Ba(NO3)2
CaSO4
CO2
H2CO3
Mg3(PO4)2
The compounds that can dissociate in water from the options given below are;
Ba(NO3)2
CaSO4
Mg3(PO4)2
What is dissociation of compounds?Dissociation of compound is the process by which compounds degraded into smaller unit which can also recombine to form larger one in another condition.
When ionic compounds dissociate in water, the water molecules separate the ionic crystal. This is because of the attraction between the positive and negative ions in the crystal.
Therefore, The following compounds dissociate in water.
Ba(NO3)2
CaSO4
Mg3(PO4)2
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Why are water and hydrogen peroxide different substances even though they are both made up of hydrogen and oxygen atoms?
Increasing ions in solution will decrease the pH of a solution, while increasing the. ions in solution will increase the pH of a solution. Fill the Blank
Help me!
Answer:
Increasing the H+/H3O+ will decrease the pH, while increasing the OH- ions will increase the pH
Explanation:
so pH=-log(H), which means that the smaller H gets to 0, the more the pH rises. The larger the H+ gets, the smaller the pH
if H is 1, then pH is 0
if H is 0.1, then pH is 1
if H is 0.01, then pH is 2
and so on
if H is 0.00000000000001, then the pH is 14
When OH goes up, H goes down, so
if OH is 0.00000000000001, then the ph is 0
if OH is 0.0000000000001, then the pH is 1
and so on
If the OH is 1, then the pH is 14
Complete:
If two or more elements or chemical compounds come into contact with one another and there is enough ________________present, a chemical change may take place.
a. When a substance undergoes a chemical change, the chemical ______________of the substance is altered.
b. A chemical change can also be called a chemical _______________.
Neon and argon are both in Group 18 of the periodic table. Which property do they most likely share (
O silver color
O strong odor
O metallic texture
O low or no reactivity
Explanation:
low or no reactivity ....
Neon and argon are both in Group 18 of the periodic table. The property that they are most likely to share is low or no reactivity. The correct option is d.
What are argon and neon?A chemical element found in the periodic table is argon. It is the third most common gas in the atmosphere and has an atomic number of 18.
In the periodic table, neon is a chemical element. It is a monatomic, noble gas with the atomic number 10 that is found in the environment.
Although a few liquid molecules do rise to the top, the vast majority stay close to the bottom. Furthermore, the molecules in the gas phase move more swiftly than those in the liquid phase.
Therefore, the correct option is d, low, or no reactivity regarding the mutual property of argon and neon.
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Helpppppppppppppppppp
Answer:
Ch4-Methane ( 5 atoms )
CO2- Carbon Dioxide ( 3 atoms )
H2O- Water ( 3 atoms )
2O2- Oxygen ( 2 atoms )
sodium oxide can react with water to produce sodium hydroxide. in the reaction, how many moles of sodium hydroxide will be produced.
Answer: 2 mol of NaOH
Explanation:
The balanced chemical equation for the reaction is:
Na2O + H2O --> 2NaOH
Looking at this, we can see that 1 mol of Na2O will react with 1 mol of H2O to produce 2 mol of NaOH
Which of the following describes carbohydrates?
Answer:
They are converted into glucose, they are a source of energy for the body
Explanation:
that's the answer
what do all fossils fuels have in common
[tex] \mathrm\pink{Almost \: all \: fossils \: are \: in \: sedimentary \: rocks.} [/tex]
Spring tides happen 2 times each month at the _and_phases
Neap tides happen 2 times each month at the _and_phases
Answer:
Spring tides happen 2 times each month at the New and Full phases
Neap tides happen 2 times each month at the First Quarter and Third Quarter phases
c) Which one of the following compounds will react with perrhenic acid? Tick one box.
ethane
hydrochloric acid
potassium carbonate
sodium chloride
Answer:
I believe is the correct answer
Explanation:
hydrochloric
Pots A and B both have plain soil, bean seeds, and the same amount of light. Pot B receives more water (see table). After 50 days the plants are measured. Based on the data, which of the following conclusions can NOT be drawn from the data table?
A plant that receives more water will have more mass
The amount of water a plant receives affects its growth
The taller a plant is, the more mass it has
A plant that receives more water will grow t
A. water per day: 20 m/ height: 24cm/ mass: 3.1g B. Water per day: 60 ml/ height: 24cm/ mass: 9.6g
I think that the answer to this question is the third option. These two plants are of the same height but plant B has more mass. So therefore the statement is not true.
If this is a multiple-choice, then I would also select the fourth option along with the third. Plant B received more water, but it is the same height as plant A.
I hope my answer is satisfactory, and that I was of help to you.
-Toremi
What are 3 types of insects that belong to Phylum ?
Answer:
3 examples are beetles, a fly, and bees. Others include ants lady bugs and butterflies
Explanation:
2H2O --> 2H2 + O2 If you begin with 20 grams of H2O, how many moles of O2 are produced?
Answer:
17.78 gm
Explanation:
2 H20 mole weight = 36 gm
which leads to 32 gm O2
36 / 32 = 20 / x x = 17.78 gm
Which of the following is an example of an insoluble substance being added to water?
When added to water, the substance quickly falls to the bottom and then dissolves.
The substance has disappeared after being poured into the water.
The substance makes the water cloudy and then forms a layer on top of the water.
The water remains clear after the substance is stirred into the water with a spoon.
Answer:
Explanation: “Insoluble” generally means that a substance does not dissolve in water. Some examples include: sand, fats, wood, metals, and plastic. When we put them in water and try to mix them, they will not dissolve.
Explanation:
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
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 volumeV1 = 9LV2 = ?T1 = 325KT2 = 450K9/325 = 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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How did Mesosaurus fossils get separated?
First, state your claim about how the Mesosaurus fossils got separated. Then, use evidence to support your claim. For each piece of evidence you use, explain how the evidence supports your claim. I need 2 reasoning and two pieces of evidence. help l will give you 15 points if they answer this now!
Answer: try thinking with your eyes close
Explanation:
Calculate the molarity of a solution prepared by diluting 7.0 mL of 4.0 M solution to a volume of 30 mL.
Considering the definition of dilution, the molarity of a solution prepared by diluting 7.0 mL of 4.0 M solution to a volume of 30 mL is 0.93 mL.
What is diluionFirst of all, you have to know that when it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.
Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.
In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.
A dilution is mathematically expressed as:
Ci×Vi = Cf×Vf
where
Ci: initial concentrationVi: initial volumeCf: final concentrationVf: final volumeMolarity of the solution in this caseIn this case, you know:
Ci= 4 M Vi= 7 mLCf= ?Vf= 30 mLReplacing in the definition of dilution:
4 M× 7 mL= Cf× 30 mL
Solving:
(4 M× 7 mL)÷ 30 mL= Cf
Cf= 0.93 mL
In summary, the molarity of a solution prepared by diluting 7.0 mL of 4.0 M solution to a volume of 30 mL is 0.93 mL.
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Explain the difference between current electricity and magnetism.
Answer:
Electricity can be present in a static charge, while magnetism's presence is only felt when there are moving charges as a result of electricity. In simple words, electricity can exist without magnetism, but magnetism cannot exist without electricity.
HOPE THIS HELPS, HAVE A GREAT DAY!!~
Explanation:
Adjust the alkalinity from 70 ppm to 100 ppm in a 250. 000 gallon pool using sodium bicarbonate
For an adjustment of the alkalinity from 70 ppm to 100 ppm in a 250,000 gallon pool using sodium bicarbonate, the amount of added chemical is mathematically given as
X=105lbs
What is the amount of added chemical?Generally, the equation for the Chemical added is mathematically given as
X=requred usage*desired change/10ppm*pool of gallon/10000
Therefore
X=1.4*(100-70/10)*(250000/10000
X=105lbs
In conclusion, the added chemical
X=105lbs
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A mutation can be defined as a change in an organism's
transcription.
phenotype.
genotype.
proteins.
Answer:
Genotype
Explanation:
A mutation is the change is DNA, aka the genotype
Explain what the color change indicated about the changes in the concentrations of Co(H2O)62+ and CoCl42– in each trial.
Trail one
starting color: purple
added 3 drops of Hcl(aq)
end color:blue
Trail two
start color is :blue
added 3 drops of AgNOv3(aq)
and White stuff forms at the bottom.
end color is: light pink
Addition of HCl leads to te formation of blue CoCl4^2– while the addition of AgNO3 leads to the formation of pink Co(H2O)6^2+.
What is equilibrium?Dynamic equilibrium is said to have been attained in a reaction when the rate of forward reaction is equal to the rate of reverse reaction. Now we have the equilibrium as shown in the image attached.
When we add HCl as in trial 1, the equilibrium position is shifted to the left and blue CoCl4^2– is formed. When we add AgNO3, the Cl^- is precipitated out of solution and the equilibrium shifts towards the left to yield pink Co(H2O)6^2+.
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Which state of matter of water is the most dense ?
A. Gaseous water vapor
B. Liquid water
C. Solid ice
D. Water and ice are equally dense.
What does Earth rotate on? (2 points)
a
Its axis
b
Its continents
c
Its countries
d
Its poles
help asap i'll give u 100 points and brainliest
Answer:
its axis
Explanation:
the earth rotates on its axis 24 hrs a day in relation to the sun.
Is god real I don’t really no but say yes
Answer:
Yes
Explanation:
We have been created by him therefore we would not have been created if there was no God.
Determine whether Z is a “poison”. Explain your reasoning.
The substance Z will be a poison if it produces adverse effects on th body even in small quantities.
What is a poison?A poison is a substance which when ingested into the body of an organism causes harm or injury to that organism.
Poisons can be in gaseous, solid or liquid form.
Poisons may be natural or synthetic in nature.
The characteristics of poison include:
The produce adverse effects in the body they are toxic even in small amountsTherefore, the substance Z will be a poison if it produces adverse effects on th body even in small quantities.
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From the video " Are Wormholes The Answer To Time Travel?", how are worm holes described?
In the video "Are Wormholes The Answer To Time Travel?"Wormholes have been described as hypothetical space-time tunnels or bridges connecting two different locations in space-time allowing faster-than-light travel or perhaps time travel.
What does the video for "Are Wormholes the Answer to Time Travel" Say?Investigating the question of whether wormholes can be used for time travel is "Are wormholes the answer to time travel?" The film explains that wormholes are hypothetical constructs that can join two different points in space-time, allowing travel faster than the speed of light and even time travel.
The video discusses the characteristics of wormholes, including their size, shape, and possible existence. In the film, several ideas and models, such as Einstein's theory of general relativity and the idea of negative energy, have been put forward by physicists and other scientists to explain the potential of wormholes.
Therefore, in the video "Are Wormholes The Answer To Time Travel?"Wormholes have been described as hypothetical space-time tunnels or bridges connecting two different locations in space-time allowing faster-than-light travel or perhaps time travel.
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What are the steps of natural selection?
Answer:
The five steps involved in the process of natural selection are
Variation • Inheritance • Selection • Time • Adaptation
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