The correct balanced equation for hydrogen and oxygen reacting to form water is 2H₂ + O₂ ⇒ 2H₂O₂. Therefore, option B is correct.
What is balanced equation ?Chemical equations are symbols and chemical formulas that depict a chemical reaction symbolically. Because mass cannot be generated or destroyed, according to the rule of conservation of mass, a chemical equation must always be in balance.
Equal numbers of atoms from various elements are present in both the reactants and the products in balanced chemical equations.
The left and right sides of the reaction arrow of a balanced equation have an equal number of each type of atom. The reactants and products are placed on the left and right sides of the arrow, respectively, to create a balanced equation.
Thus, The correct balanced equation for hydrogen and oxygen reacting to form water is 2H₂ + O₂ ⇒ 2H₂O₂. Therefore, option B is correct.
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What are 3 examples of making diluted solutions in "regular" life?
what are examples of diluted?
Answer:
Do it your self bro
Explanation:
You lazy bum do it yourself
3. Svante Arrhenius developed a definition of acids and bases
which stated...
A. acids produce OH+ ions and bases produce H ions
B. acids produce H+ ions and bases produce OH ions
STAT
C. acids and bases are the same
D. acids have a high pH and bases have a low pH
pls help
btw any links will be reported.
In your OWN words, what is the difference between a solute, solvent and solution?
Answer:
could u all help me??
Who was Agamemnon trying to persuade to come fight with him again?
Patroclus
Achilles
Odysseus
Hector
Explanation:
London dispersion forces decrease with increasing number of electrons decreasing number of electrons
Answer:
Increasing number of electrons
Explanation:
London dispersion forces are intermolecular forces that occur due to momentary shifts in the electron cloud of atoms or molecules.
London dispersion forces are most commonly observed as the predominant kind of intermolecular forces in non-polar substances.
Generally, it is observed that the strength of these London dispersion forces tends to increase as the number of electrons in the substance increases.
A sample of gas at 53.0 oC and 1.19 atm occupies a volume of 2.3 L. What volume would this gas occupy at 107 oC and 0.60 atm?
Answer:
[tex]V_2=5.32L[/tex]
Explanation:
Hello there!
In this case, according to the given pressure, temperature and volume, it is possible for us to calculate the final volume via the combined ideal gas law:
[tex]\frac{P_2V_2}{T_2}=\frac{P_1V_1}{T_1}[/tex]
In such a way, we solve for the final volume, V2, to obtain:
[tex]V_2=\frac{P_1V_1T_2}{T_1P_2}[/tex]
Then, we plug in the given data to obtain:
[tex]V_2=\frac{1.19atm*2.3L*380K}{326K*0.60atm}\\\\V_2=5.32L[/tex]
Regards!
how could you get the crystals in a supersaturated solution back into the solution?
Question 6
6.7 pts
A solution has a very high electrical conductivity, turns litmus paper red and has a pH of 2.0. This is most likely
a(n)
Base/Strong Electrolyte
Acid/Weak Electrolyte
Acid/Strong Electrolyte
Base/Weak Electrolyte
Next
« Previous
Answer:
Acid/String Electrolyte
Explanation:
Litmus paper turning red means it is an acidic solution. A pH of more than 7 is Base while pH of less than 7 is an acid. Since the pH is 2, less than 7, it s is an acid. Since it has a high electrical conductivity, it must be a strong Electrolyte.
How many moles of Fe₂O₃ are there in 0.54 liters of a 1.6 M solution?
Answer: 0.86 mol
This is a molarity problem, in which M is defined by:
[tex]\frac{n(moles of solute)}{v(liters of solution)}[/tex]and the units are moles/liter
With this information in mind, we can plug in M and v already so that:
1.6 [tex]\frac{mol}{L}[/tex]= [tex]\frac{xmol}{0.54L}[/tex] of Fe₂O₃
If we multiply 0.54 L from both sides, we will get:
0.864 mol = x mol of Fe₂O₃
Rounding that to sigfigs, we get that the number of moles within this Fe₂O₃ solution is 0.86 mol; therefore, that is the answer.
I hope this helped!
NO FILES PLZ HELP
When a solid produced by a chemical reaction separates from the solution it is called...
a precipitate.
a molecule.
b. a reactant.
d. the mass of the product.
Answer:
a. Precipitate
Explanation:
solids can precipitate out of the solution and be left over after the reaction. reactants are incorrect because they are reacted to cause the reaction. b and d are also irrelevant terms.
What is the SUM of the coefficients for the balanced chemical equation below?
PLEASEEEE
A gas occupies 4.21 Iiters at a pressure 1 074 atm. What will its volume be if the pressure is decreased to 0.46 atm?
Answer:
15.9 Liters
Explanation:
according to Boyle's law P1V1 = P2V2
so we just plug in the values the problem gives us and solve for V2
(1.74)(4.21)=(.46)(V2)
V2 = 15.9 Liters
*note - there is a typo in your question when you states P1 = 1 074 atm. I just assumed you meant 1.74, if this is a mistake just replace 1.74 with the real P1 and solve it as shown above
if you have any questions just comment them below
explain how soil can affect the composition of the solution that move through it
Answer: Soils are formed through the interaction of five major factors: time, climate, parent material, topography and relief, and organisms.
Soil structure affects plant growth in many, often surprising, ways. The most obvious effects are on root growth, which is strongly inhibited by hard soil, and which in turn influences the ability of the root system to extract adequate water and nutrients from the soil.
Explanation:
https://www.publish.csiro.au/sr/pdf/SR9910717
This is where I gather some info.
In a calorimetry experiment the water absorbs 273 J of heat (q), how much heat (q) is released by the metal if no heat is lost? Remember: -qreleased = qabsorbed ANS: _____ kJ/mol
Answer:
qreleased = -273J.
Explanation:
Hello there!
In this case, according to this calorimetry question, and keeping in mind that the hot substance releases heat to the cold substance which absorbs it, according to:
-qreleased = qabsorbed
In such a wat, since the water absorbs 273 J of heat and no heat is lost, the amount of this measurement released by the metal is:
-qreleased = 273J
qreleased = -273J
Regards!
BONUS QUESTION - It takes 194 mL of a 0.5 M NaOH solution to neutralize 300
mL of an HCl solution. What is the concentration of the HCl solution? (3 pts)
NaOH + HCL » NaCl + H,O
Answer:
1.7 mol/dm3
Explanation:
working out in the image
How do some insects take advantage of the surface tension of water?
A standard lanthanum solution is prepared by dissolving 0.1968 grams of lanthanum oxide (La2O3) in excess nitric acid and diluting to one liter in a volumetric flask. Calculate the concentration of the solution expressed as molarity of lanthanum nitrate and as ppm lanthanum.
Answer:
1.208x10⁻³M and 392.5ppm La(NO3)3
Explanation:
The reaction that occurs is:
La2O3 + 6HNO3 → 2La(NO3)3 + 3H2O
Molarity is defined as the moles of solute (In this case, LaO3) per liter of solution. And ppm, are mg of solute per liter of solution.
To solve this question we must find the moles of La(NO3)3 produced and its mass in milligrams to find molarity and ppm:
Moles La2O3 -Molar mass: 325.81g/mol-
0.1968g * (1mol / 325.81g) = 6.04x10⁻⁴ moles La2O3
Moles La(NO3)3:
6.04x10⁻⁴ moles La2O3 * (2mol La(NO3)3 / 1mol La2O3) = 1.208x10⁻³ moles La(NO3)3
Molarity:
1.208x10⁻³ moles La(NO3)3 / 1L =
1.208x10⁻³MMass La(NO3)3 -Molar mass: 324.92g/mol-
1.208x10⁻³ moles La(NO3)3 * (324.92g / mol) = 0.392.5g La(NO3)3
In mg:
392.5mg La(NO3)3 / 1L =
392.5ppm La(NO3)3
Intravenous saline solutions are often administered to patients in the hospital. Normal saline solution containers has a concentration of 0.20 M and a volume of 0.10L of solution. How many moles of sodium chloride were dissolved? *
2 points
0.02 mol
2.0 mol
0.5 mol
5 mol
0.02 mol NaCl
Explanation:
(0.2M NaCl)×(0.10 L) = 0.02 mol NaCl
Part B
DIRECTIONS: Identify the type of heat transfer depicted in each picture by arranging the
jumbled letters and answer the questions that follows.
Answer:
1. conduction
2. Convection
3. Radiation
D is a green crystalline solid that dissolves in water to give a very pale green solution addition of sodium hydroxide solution to a solution of D
Answer:
I think its iron(II) oxide
Explanation:
The substance is black but when it's mixed with water it turns green solution so when mixed with sodium Hydroxide it turns green
A sodium nitrate solution was prepared in the lab to have a concentration of 0.467 M. If 50. mL of a 6.00 M stock solution was used to prepare this sodium nitrate solution, what volume of water was added to the original 50. mL of stock solution? Provide the appropriate units (mL or L) to your response.
the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .
Explanation:
2. What is the best way to test a hypothesis?
O by conducting research
by designing and performing an experiment
by designing an experiment
O by making an educated guess
Answer:
by designing and performing an experiment
Explanation:
This is because hypothesis refer to a guess or explanation that is made base on limited evidence and it is proposed for further experiment.
The best way to know whether your hypothesis is true is to design and conduct an experiment. When this is done, the outcome will determine whether the hypothesis is true and valid or not.
how do you start a hypothesis in science which includes scientific words and information which is on how much sugar can dissolve in water using the temperature of the solvent which is the water?
Answer: If ... Then... Because...
Explanation: if I water this plant twice a day then it will grow 3 feet because the more water it gets the bigger it grows
one should know properties of constituents of a mixture to separate the mixture .Why?
Answer:
Because: The mixtures contain unwanted substances which may be harmful and may degrade the properties of mixtures. So we, need to separated them and extract useful substances.
Answer:
The composition of the mixture is very important, as a result of nature exists solely by its properties, and also the reactions may be separated.
copper oxide + hydrochloric acid →
Answer:
copper oxide + hydrochloric acid --> copper chloride + water
Explanation:
Thenks and mark me brainliest :))
Answer:
Copper oxide hydrochloric acid ( CuCl2 + H2O)
Explanation:
CuO + HCl → CuCl2 + H2O
Increasing the surface area between solute and solvent Select one: a. has no effect on the rate of dissolution. b. decreases the rate of dissolution. c. can increase, decrease, or have no effect on the rate of dissolution. d. increases the rate of dissolution.
Increasing the surface area between solute and solvent, increases the rate of dissolution.
What is rate?Rate of any process will gives idea about the speed of the completion of that happening process.
Dissolution is a process in which solute particles gets dissolve in the solvent medium. If we increases the surface area of any one medium of the solution like solute or solvent then the rate of dissolution increases, as it increases the space to get attracted to each other.
Hence, option (d) is correct.
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Name the following hydrocarbon:
Br
Br
A. 1,3-dibromopentane
B. 2,4-dibromoethane
C. 1,3-dibromoethane
D. 2,4-dibromopentane
Please help! This is for the 9.06 Acid Neutralization Lab! Due today!
Amount of added (mL) | Litmus color | Approximate pH
1 | |
2 | |
3 | |
4 | |
5 | |
6 | |
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10 | |
hi there bestie [i think its 3]
How many liters are in 1576.94 mL?
Answer:
1.57694 L
Explanation:
To convert from mL to L, you simply divide the value by 1000.
pls help me guys please please only 1 question choose
Answer:
D.4 types of molecules is yr ans.
stay safe healthy and happy.
What kind of reaction shows two reactants combining to form one new product?
What kind of reaction shows two reactants combining to form one new product?
A) a single-replacement reaction
B) a double-replacement reaction
C) a decomposition reaction
D) a synthesis reaction